Golden fish patties: half-moon pastries wrapped around a tuna and potato filling
CuisineSri Lankan

Sri Lankan Fish Patties: Tuna and Potato Half-Moon Pastries (Patis)

How to make Sri Lankan fish patties (patis), the short eat of spiced tuna and potato wrapped in coconut-milk pastry, folded into half-moons and deep-fried. Follows one named cookbook recipe step by step, with the filling order, pastry texture, sealing, frying cues, leftovers handling and the short-eat context behind the snack.

Cooking flow

Cooking steps

STEP 11 / 18

Boil the potatoes in their skins

Boiling whole potatoes in their skins and testing one with a fork
Boil the potatoes whole and check them with a fork

Wash 250 g potatoes and boil them with their skins on for about 15 minutes, until cooked. A fork should slide into the center easily.

STEP 22 / 18

Cool, peel and chop the potatoes

Peeling a cooled boiled potato
Peel the potatoes once they have cooled

Leave the potatoes to cool. Peel off the skins.

Then chop the potatoes finely.

Finely chopping a cooled boiled potato
Chop the peeled potatoes finely for the filling
STEP 33 / 18

Soften the onion, garlic and ginger

Cooking chopped onion, garlic and ginger in a little oil over low heat
The onion should be soft and just turning golden

Heat 3 tbsp oil in a pan over low heat. Add the finely chopped onion, garlic and ginger, and cook until the onion is soft and turning golden. Keep this oil separate from the 500 ml frying oil.

STEP 44 / 18

Stir in the ground spices

Stirring turmeric, cumin, cinnamon, cloves and black pepper into the softened aromatics
Stir until the ground spices coat the aromatics evenly

Add the turmeric, cumin, cinnamon, cloves and black pepper. Stir until the spices are evenly mixed through the onion, garlic and ginger.

STEP 55 / 18

Add the tuna and dill

Adding drained canned tuna and chopped dill to the spiced aromatics
Break the tuna into chunks, not a paste

Add 300 g drained canned tuna and the chopped dill. Break the tuna into chunks with the spoon and cook for about 3 minutes, stirring frequently. Keep the tuna in chunks rather than working it into a paste.

STEP 66 / 18

Add the potatoes and salt

Mixing chopped potatoes and salt into the tuna filling
Fold the potatoes through without mashing the filling

Add the chopped potatoes and 2 tsp salt. Mix well and cook for another 2 minutes, stirring frequently.

STEP 77 / 18

Finish with lime and take the pan off the heat

Squeezing half a lime over the tuna and potato filling
Add the lime last, then take the pan off the heat

Squeeze in the juice of half a lime and take the pan off the heat.

Practical suggestion: let the filling cool before you fill the pastry, so it is easier to handle on the soft dough. There is no fixed time for this.

STEP 88 / 18

Rub the butter into the flour

Rubbing butter into flour and salt until it looks like fine crumbs
Stop when the mixture looks like fine, uneven crumbs

Mix 300 g flour and 1/2 tsp salt in a wide bowl. Rub in 3 tbsp butter with your fingertips until the mixture looks like fine crumbs.

STEP 99 / 18

Add the yolk and coconut milk and knead

Kneading the flour mixture with egg yolk and coconut milk into a soft dough
Knead until soft and pliable, not wet or sticky

Beat the egg yolk and mix it into the crumbs. Add 60 ml coconut milk a little at a time while kneading, until the dough is soft and pliable. If it needs it, add a little extra flour or water.

STEP 1010 / 18

Wrap and chill the dough

Placing the wrapped pastry dough in the refrigerator to rest for 30 minutes
Chill the wrapped dough for 30 minutes

Wrap the dough and chill it in the refrigerator for 30 minutes.

STEP 1111 / 18

Roll out the dough

Rolling half of the dough to about 5 mm thick on a floured surface
Roll one half of the dough to about 0.5 cm

Divide the dough in half. Roll one half on a lightly floured surface to about 0.5 cm thick.

STEP 1212 / 18

Cut the circles

Cutting 5–6 cm circles from the rolled dough
Cut six circles from each half of the dough

Cut six circles, each about 5–6 cm (2–2.5 inches) across, from the rolled dough. Repeat the rolling and cutting with the second half, for twelve circles in all.

STEP 1313 / 18

Spoon on the filling

Placing a tablespoon of tuna and potato filling in the center of a pastry circle
One tablespoon of filling per circle, with a clean rim for sealing

Place 1 tbsp (20 ml) filling in the center of each circle, leaving a clean edge all the way around.

STEP 1414 / 18

Brush the edge with egg white

Brushing beaten egg white along the edge of the pastry circle
A thin line of egg white along the bare edge

Lightly beat the egg whites and apply a thin line to the edge of each pastry circle.

STEP 1515 / 18

Fold into a half-moon

Folding the pastry circle over the filling into a half-moon
Fold the circle into a crescent over the filling

Fold each circle over the filling into a half-moon, bringing the two edges together.

STEP 1616 / 18

Seal with a fork

Pressing the curved edge of the half-moon with a fork to seal it
Press the tines of a fork along the curved edge

Press along the curved edge with a fork to seal it. If the pastry tears, close it up again before frying.

STEP 1717 / 18

Deep-fry in batches until golden

Turning fish patties in hot oil, a small batch at a time, until golden
Fry five or six at a time and turn until golden

Heat 500 ml oil gradually in a deep saucepan, then keep the heat at medium. Fry 5–6 patties at a time for about 3 minutes, turning them as they cook, until golden brown. Don't crowd the pan. Stay beside the pan while frying, and turn off the heat before you step away.

STEP 1818 / 18

Drain on kitchen paper

Lifting a fried fish patty onto kitchen paper to drain
Drain the fried patties on kitchen paper

Lift the patties out with a slotted spoon and drain them on kitchen paper to absorb the excess oil.

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Ingredients

Ingredients

1 / 1

Ingredients

Ingredient Amount Role
Potatoes 250 g Filling. Boiled in their skins, then peeled and finely chopped
Oil 3 tbsp For cooking the filling
Onion, medium 1 Finely chopped
Garlic cloves 3 Finely chopped
Ginger 2.5 cm (1 inch) piece Peeled and finely chopped
Ground turmeric 1 tsp Ground spice for the filling
Ground cumin 1/2 tsp Spice for the filling
Ground cinnamon 1/4 tsp Ground, not a stick
Ground cloves 1/4 tsp Ground, not whole cloves
Ground black pepper 1 tsp Spice for the filling
Canned tuna, drained weight 300 g The fish in the filling; broken into chunks
Fresh dill, finely chopped 1 tbsp Fresh herb for the filling
Salt 2 tsp Seasoning for the filling, added with the potatoes
Lime Juice of 1/2 lime Added at the end of cooking the filling
Plain (all-purpose) flour 300 g Pastry
Salt 1/2 tsp Seasoning for the pastry
Butter 3 tbsp Rubbed into the flour
Egg yolk 1 Pastry
Coconut milk 60 ml (1/4 cup) Kneaded into the pastry a little at a time
Extra flour or water A little Only if the dough needs it
Egg whites As needed Lightly beaten, for sealing the pastry edges
Oil for deep-frying 500 ml Frying the patties
0 / 0

Fish Patties: A Small Half-Moon With a Spiced Tuna Center

What this recipe should keep

A pastry that is soft and pliable before frying, a filling with chunks of tuna and potato rather than a paste, and a fork-pressed seam that stays closed in the oil.

A golden half-moon, its curved edge marked with the tines of a fork. Break one open and the center is chopped potato and flakes of tuna, mixed with turmeric, cumin, cinnamon, cloves, black pepper, fresh dill and a squeeze of lime. The pastry around it is made with flour, butter, egg yolk and coconut milk.

This is the fish patty, or patis (පැටිස්), a snack presented as one of Sri Lanka's short eats. It is not a fishcake or a fish ball shaped from fish paste: the filling is cooked first, enclosed in a circle of pastry, folded, sealed and deep-fried. The practical questions are the ones that decide whether it works at home: keeping the dough pliable, keeping the filling to a measured spoonful, and keeping the seam closed.

The recipe below follows a single published version from a named Sri Lankan cookbook. Sekai Gohan has not kitchen-tested this recipe; the amounts, times and cues are those of the published version, and where it leaves something open, this article says so rather than filling the gap. For more dishes from the same country, see our Sri Lanka page.

What Is a Fish Patty (Patis)?

A fish patty is a filled pastry, not a formed fishcake. In the version used here, circles of pastry are topped with a spoonful of cooked tuna-and-potato filling, folded into half-moons, pressed closed with a fork and deep-fried in batches. The shape is a crescent with a crimped edge, not a ball, a square or a flat round cake.

SBS Food publishes this recipe as a popular Sri Lankan snack, crediting it to Prakash K Sivanathan and Niranjala M Ellawala and their book Sri Lanka the Cookbook. Hungry Lankan author Roshani Wickramasinghe uses the name patis (පැටිස්) for this kind of pastry. Those sources support the association with Sri Lanka; they do not establish that the dish comes only from Sri Lanka, and this article does not present its version as the one authentic recipe. Hungry Lankan's own fish-patty recipe uses a different dough and filling, which shows that the name covers more than one formula.

Short Eats, Tea Time and One Author's School-Lunch Memory

In Roshani Wickramasinghe's description, short eats are snacks, and she writes about short-eat shops with their display cases and about taking short eats to school for lunch. Those are her own memories, offered as one person's experience rather than as a rule for everyone.

The Sri Lanka Tourism Promotion Bureau lists patties among Sri Lankan short eats, alongside cutlets, Chinese rolls, fish buns and pastries, and places short eats with evening tea or a quick breakfast. Its overview describes Sri Lankan cuisine broadly as multicultural; it does not trace the history of fish patties or tie them to a particular community, and this article does not offer an origin story. Roshani Wickramasinghe also says she enjoys her patties with Ceylon tea, which is a pleasant way to serve them but not part of the recipe.

About This Version: What the Recipe Says and Leaves Open

This article uses the SBS Food recipe from Sri Lanka the Cookbook. That recipe allows either 300 g of fresh tuna, steamed and flaked, or 300 g of canned tuna by drained weight. This article uses the canned tuna option only; the two are alternatives, not a mixture.

A few points in the published recipe need to be read carefully:

  • Spoon measures are Australian. The page states 1 tsp = 5 ml, 1 tbsp = 20 ml and 1 cup = 250 ml. The amounts below keep those spoons.
  • The oil appears as one line. The ingredient list gives 3 tbsp and 500 ml of oil together. The method uses a small amount to cook the filling and a larger amount to deep-fry, so this article reads the 3 tbsp as the filling oil and the 500 ml as the frying oil. The type of oil is not named.
  • Egg yolk and egg whites. The ingredient list gives one egg yolk for the pastry, while the shaping instructions call for lightly beaten egg whites on the pastry edge. The recipe gives no amount of egg white and does not say whether the whites come from the same egg as the yolk. This article leaves both points open rather than guessing an egg count.
  • The filling is not cooled in the recipe. After the lime goes in, the recipe only says to take the pan off the heat. Letting the filling cool before you fill the pastry is this article's own practical suggestion, and no time is given for it.
  • "Boiling point" is not a temperature. The recipe tells you to bring the frying oil to "boiling point" and fry at medium heat, but gives no number. This article does not turn that phrase into a temperature. As separate, general cooking guidance (not a figure from this recipe and not a food-safety endpoint), Japan's Ministry of Agriculture, Forestry and Fisheries gives about 175–180°C as a basic range for frying fish and meat at home. Japan's Fire and Disaster Management Agency advises turning off the heat before leaving frying oil, because oil left heating unattended can catch fire.
  • Yield and time. The recipe says it makes 12 serves. Its method cuts six circles from each of two halves of dough, which gives twelve circles; that piece count follows from the method rather than from a stated yield. The recipe lists 20 minutes of preparation and 25 minutes of cooking, plus 30 minutes for chilling the dough. It gives no total time.

Ingredients for Fish Patties

Tuna, potatoes, onion, garlic, ginger, dill, flour, butter, egg, coconut milk and spices for fish patties
Filling, pastry and frying ingredients laid out before cooking

This recipe contains fish, wheat, butter (dairy) and egg, and the pastry contains coconut milk.

Equipment

  • Saucepan for boiling the potatoes
  • Pan for cooking the filling, and a wooden spoon
  • Wide mixing bowl
  • Plastic wrap
  • Rolling pin
  • Round pastry cutter, 5–6 cm (2–2.5 inches)
  • Fork
  • Deep saucepan for frying
  • Slotted spoon
  • Kitchen paper

Choosing Tuna, Dill and Coconut Milk

Tuna. Weigh the canned tuna after draining; use 300 g drained weight. Use canned tuna throughout this version.

Dill. Use 1 tbsp finely chopped fresh dill. Look in the fresh herb section.

Coconut milk. Use 60 ml in the pastry, not the filling.

Everything else. Potatoes, onion, garlic, ginger, ground spices, flour, butter, eggs and lime are ordinary supermarket ingredients. A 5–6 cm round cutter matches the circle size, but it is a convenience rather than a special purchase.

Method: Filling, Pastry, Shaping and Frying

Two stages that can be separated

The filling (steps 1–7) and the pastry (steps 8–10) are independent until step 13. While the dough chills, the filling can rest off the heat.

When Something Goes Wrong: What to Look At

These checks stay within the recipe's own cues. They are not tested fixes, and they don't add new amounts.

What you see What to check What to do
The aromatics are darkening before the spices go in The heat under the filling oil Keep the heat low; the onion should be soft and only turning golden
The filling looks like a paste How hard the tuna and potato were worked Break the tuna into chunks and mix the potato through rather than mashing it
The dough stays crumbly How much coconut milk has gone in Keep adding the coconut milk gradually while kneading; add a little water only if the dough still needs it
The dough feels wet or sticky Whether liquid went in too fast Work in a little extra flour, then chill for the full 30 minutes
The seam opens or filling escapes Filling amount, egg white on the edge, fork pressing Keep to 1 tbsp filling, keep the edge clean, brush with egg white and press the whole curve with the fork
The pastry tears while shaping The tear itself Close it up again before the patty goes into the oil
The patties color unevenly Batch size and turning Fry only 5–6 at a time, turn them as they cook, and take them out when golden brown

Serving and Storing Fish Patties

Two half-moon fish patties on a plate with a cup of tea
Fish patties served as a small snack, with tea as an optional companion

Serve the patties after draining as a small snack, one or more per person depending on appetite. Short eats are associated with evening tea and quick breakfasts, and a cup of Ceylon tea alongside is an optional idea, not part of the recipe.

For leftovers, cool them promptly in a clean, shallow container and refrigerate them; don't leave them out at room temperature. Reheat leftovers thoroughly, to at least 75°C. No storage period is given for this dish, so this article does not suggest a number of days.

Ways to Adjust Within This Recipe

  • Canned or fresh tuna (canned selected here). The same recipe offers 300 g fresh tuna, steamed and flaked, as an alternative to 300 g drained canned tuna. Use one or the other, never both together.
  • Circle size. Use a 5 cm or 6 cm cutter, and keep the filling at 1 tbsp per circle either way.
  • Portions. Serve one patty as a small snack or more as appetite suggests; this does not change the recipe's amounts.
  • Tea on the side. Ceylon tea is a serving idea, kept outside the ingredient list.
  • Splitting the work. You can cook the filling and let it cool while the dough chills, so the two stages meet at step 13. This is a scheduling idea for the same session, not a make-ahead storage method.
  • Frying only. The recipe is deep-fried. Baking or other cooking methods are not covered here and are not suggested.

Frequently Asked Questions

Before the questions

Most problems come back to three things: a filling kept in chunks, a dough kneaded only until soft and pliable, and a seam sealed with egg white and a fork.

Is a fish patty the same as a fishcake?

No. In this version, a cooked fish-and-potato filling is enclosed in pastry, folded into a half-moon, sealed with a fork and deep-fried. A fishcake or fish ball is shaped from the fish mixture itself, with no pastry around it.

Can I use canned tuna?

Yes. Canned tuna is the option chosen here, at 300 g drained weight. The SBS recipe also allows fresh tuna, steamed and flaked first; if you go that way, Japan's Ministry of Health, Labour and Welfare advises cooking food thoroughly at home. Don't combine fresh and canned tuna in one batch.

Can I replace the dill or the coconut milk?

The recipe gives no replacement for either, so this article doesn't present one as working. Fresh dill and coconut milk are both part of this version.

How many eggs do I need?

The ingredient list gives one egg yolk for the pastry, and the shaping instructions call for lightly beaten egg whites on the edge. The recipe gives no amount of egg white and doesn't say whether the whites come from the same egg as the yolk, so this article doesn't state an egg count.

Why does my dough crack, or the patties open in the oil?

Go back to the recipe's cues: add the coconut milk gradually until the dough is soft and pliable, chill it for 30 minutes, use 1 tbsp filling per circle, brush the edge with egg white and press the whole curve with a fork. If the dough needs adjusting, the recipe allows a little extra flour or water but gives no amount. Letting the filling cool before assembly is this article's own suggestion, not a step in the recipe.

What temperature should the frying oil be?

The SBS recipe says to bring the oil to "boiling point" and fry at medium heat, but gives no temperature, and that phrase shouldn't be read as a literal number. As separate general guidance, Japan's Ministry of Agriculture, Forestry and Fisheries gives about 175–180°C as a basic range for frying fish and meat at home; that is a cooking-quality guide, not a figure tested with this recipe and not a food-safety endpoint. Japan's Fire and Disaster Management Agency advises turning off the heat before leaving frying oil, even on low heat.

How long can I keep leftovers?

The recipe gives no storage period. Japan's Ministry of Health, Labour and Welfare advises cooling leftovers promptly in clean, shallow containers, refrigerating them rather than leaving them at room temperature, and reheating them thoroughly to at least 75°C. It does not set a number of days for this dish, and neither does this article.

Do I have to serve them with tea?

No. Tea is a serving context: the Sri Lanka Tourism Promotion Bureau links short eats with evening tea and quick breakfasts, and Hungry Lankan's Roshani Wickramasinghe says she enjoys her patties with Ceylon tea. The patties are complete on their own.

Sources

  • SBS Food, "Fish patties recipe," recipe by Prakash K Sivanathan and Niranjala M Ellawala from Sri Lanka the Cookbook (Murdoch Books). The recipe followed in this article: ingredients and amounts, Australian measures, the fresh or canned tuna option, the 12-serve label, preparation, cooking and chilling times, and the method. https://www.sbs.com.au/food/recipe/fish-patties/4ovgoekd4
  • Roshani Wickramasinghe, "Sri Lankan Fish Patties," Hungry Lankan. The name patis (පැටිස්), short eats, and the author's own memories of short-eat shops, school lunches and Ceylon tea. Its separate recipe is not used here. https://www.hungrylankan.com/recipes/sri-lankan-fish-patties/
  • Sri Lanka Tourism Promotion Bureau, "So Rich In Flavours." Patties listed among Sri Lankan short eats, and short eats with evening tea or a quick breakfast. https://srilanka.travel/culinary-tourism/index.php
  • Ministry of Health, Labour and Welfare, Japan, "家庭での食中毒予防" (Preventing food poisoning at home). General guidance on cooling leftovers promptly in clean, shallow containers, not leaving cooked food at room temperature, and reheating to at least 75°C. https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/kenkou_iryou/shokuhin/syokuchu/01_00008.html
  • Fire and Disaster Management Agency, Japan, "2.ガス安全(LPガス編)" (Gas safety: LP gas). General advice that frying oil left heating unattended can catch fire, and to turn off the heat before leaving it. https://www.fdma.go.jp/relocation/e-college/cat67/cat50/cat48/1-39.html
  • Ministry of Agriculture, Forestry and Fisheries, Japan, "家庭で揚げ物をする際に、どうすれば上手に揚げることができますか。" (How to deep-fry well at home). General cooking guidance giving about 175–180°C as a basic frying range for meat and fish, and advice to limit how much is fried at once and turn food while frying. https://www.maff.go.jp/j/heya/sodan/1503/01.html