A plain serving of Philippine-style pork asado coated in tomato sauce
CuisineFilipino

Philippine Asado: Thin-Sliced Pork Simmered with Tomato, Star Anise and Oyster Sauce

How to make one Filipino-style pork asado: thin-sliced pork shoulder marinated in calamansi and soy sauce, simmered until fork-tender in a buttery tomato base with bay and star anise, and finished with oyster sauce. Includes a core-temperature check and notes on how asado recipes differ.

Cooking flow

Cooking steps

STEP 11 / 27

Put the pork in a bowl

Thin slices of raw pork shoulder being placed in a bowl
The pork goes into the bowl already sliced

Put 1/2 kilo (500 g) of thin-sliced pork shoulder in a clean bowl. Do not wash it or cut it further.

STEP 22 / 27

Add the calamansi juice

Calamansi juice being poured over the sliced pork
Calamansi juice goes in first

Pour 1 Tbsp of calamansi juice over the pork.

STEP 33 / 27

Add the soy sauce

Soy sauce being poured over the pork in the bowl
Soy sauce follows the calamansi

Add 1/4 cup of soy sauce.

STEP 44 / 27

Mix the pork and marinade

Pork slices being mixed through the marinade
Turn the slices so the marinade reaches them all

Turn the slices with a clean utensil until the calamansi and soy sauce coat them.

STEP 55 / 27

Cover and refrigerate for 30 minutes

A covered bowl of raw marinating pork being placed in a refrigerator
The pork marinates covered and refrigerated

Cover the bowl and refrigerate it for 30 minutes. Do not leave it at room temperature. Keep it away from cooked food in the refrigerator. You can prepare the onion during this time.

STEP 66 / 27

Peel the onion

Hands peeling the skin from a white onion
Peel the onion before any cutting

Peel the skin from one whole white onion.

STEP 77 / 27

Chop the onion

Hands chopping a peeled white onion on a board
Chop the onion into small pieces

Chop the peeled onion into small pieces on a clean board.

STEP 88 / 27

Measure the onion

Chopped white onion being measured with a spoon
Measure the onion after chopping it

Measure 1 Tbsp of the chopped onion. This is all the onion that goes in the pot.

STEP 99 / 27

Heat the pot

An empty pot being set over a lit burner
The pot goes on the heat empty

Set a clean, empty pot over the heat.

STEP 1010 / 27

Melt the butter

Unsalted butter melting in the pot
Butter is the only fat in the pot

Add 4 Tbsp of unsalted butter and let it melt.

STEP 1111 / 27

Add the onion

Chopped onion being added to the pot
The measured onion goes into the butter

Add the measured onion to the melted butter.

STEP 1212 / 27

Sauté the onion

Onion being sautéed in butter
Sauté the onion before adding any tomato

Sauté the onion in the butter.

STEP 1313 / 27

Add the tomato sauce

Tomato sauce being poured over the onion in the pot
Tomato sauce joins the sautéed onion

Pour in 1/2 cup of tomato sauce.

STEP 1414 / 27

Sauté the onion and tomato sauce

Onion and tomato sauce being stirred together in the pot
Sauté the two together before adding the seasonings

Stir the onion and tomato sauce together as they sauté.

STEP 1515 / 27

Add the bay leaves

Bay leaves being dropped into the pot
Bay leaves are the first seasoning to go in

Add 2 bay leaves.

STEP 1616 / 27

Add the brown sugar

Brown sugar being added to the pot
Brown sugar follows the bay leaves

Add 4 Tbsp of brown sugar.

STEP 1717 / 27

Add the tomato paste

Tomato paste being spooned into the pot
Tomato paste goes in after the sugar

Add 1 Tbsp of tomato paste.

STEP 1818 / 27

Add the star anise

A whole star anise being added to the pot
One whole star anise completes the base

Add 1 whole star anise.

STEP 1919 / 27

Add the pork and all the marinade

Pork slices and all their marinade being poured from the bowl into the pot
The pork and every bit of marinade go in together

Take the bowl from the refrigerator and pour the pork and all of its uncooked marinade into the pot. Do not discard any of the marinade. Keep the empty bowl away from cooked food.

STEP 2020 / 27

Mix

A utensil mixing pork slices through the tomato sauce
Mix so the slices are coated in the sauce

Mix the pork through the tomato base until the meat is coated.

STEP 2121 / 27

Simmer for 30–60 minutes

Pork slices simmering in tomato sauce in an uncovered pot
The pork simmers uncovered, with no added water

Simmer for 30–60 minutes, until the pork is fork-tender. Leave the pot uncovered and add no water.

STEP 2222 / 27

Test with a fork

A fork testing a slice of pork in the pot
Use a fork to judge tenderness

Press a fork into a slice of pork. If it is not yet tender, keep simmering and test again. Tender pork still needs the temperature check in steps 25 and 26.

STEP 2323 / 27

Add the oyster sauce

Oyster sauce being poured from a plain cup into the pot
The oyster sauce goes in only after the pork is tender

Add 2 packs of SARSAYA oyster sauce, 60 g total.

STEP 2424 / 27

Simmer to blend

Pork and sauce simmering together in the pot
A few more minutes brings the sauce together

Simmer for a few minutes until the sauce is blended.

STEP 2525 / 27

Insert the thermometer

A food thermometer probe being inserted into a slice of pork
Check the thickest slice

Insert a clean food thermometer into the center of the thickest slice of pork.

STEP 2626 / 27

Check the core temperature

A thermometer probe held steady in a slice of pork during a doneness check
Hold the probe in place while you check the core temperature

Confirm that the center of the pork has reached 75°C and stays there for at least 1 minute. If it has not, keep simmering and check again.

STEP 2727 / 27

Serve hot

A bowl of pork asado set out hot, with nothing alongside it
Serve it hot, on its own

Using a clean utensil, serve the asado hot and plain.

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Ingredients

Ingredients

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Ingredients

Ingredient Amount Role
Thin-sliced pork shoulder (kasim) 1/2 kilo (500 g) The meat of the dish
Calamansi juice 1 Tbsp Citrus in the marinade
Soy sauce 1/4 cup Seasoning in the marinade
Unsalted butter 4 Tbsp Cooking fat for the base
White onion, chopped 1 Tbsp Aromatic for the base
Tomato sauce 1/2 cup Body of the sauce
Bay leaves 2 Aromatic
Brown sugar 4 Tbsp Sweetness
Tomato paste 1 Tbsp Added tomato depth
Star anise 1 Whole spice
SARSAYA oyster sauce 2 packs, 60 g total Added late to finish the sauce
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Philippine Asado: One Pork Version from a Name with Many

What this article covers

This is one modern Filipino-style pork asado, published by Ajinomoto Cookmunity Philippines as a recipe for its SARSAYA oyster sauce. It is not a national standard, and the word "asado" also covers quite different recipes.

Thin slices of pork shoulder sit in calamansi juice and soy sauce for 30 minutes. In a separate pot, butter melts, chopped white onion goes in, and tomato sauce follows, then bay leaves, brown sugar, tomato paste and a single star anise. The pork joins the pot with all of its marinade and simmers until a fork passes through it easily. Only then does the oyster sauce go in, for a last few minutes on the heat.

The amounts and the order of cooking come from the Ajinomoto Cookmunity recipe. Two things are our own additions for home cooks: refrigerating the pork while it marinates, and checking the core temperature of the pork at the end. That check follows food-safety guidance from Japan's Ministry of Health, Labour and Welfare and is separate from the simmering time. Sekai Gohan has not kitchen-tested this recipe as a whole.

The published recipe lists 8 servings and a serving size of 1/2 cup (97.5 g). Treat those as its own estimates, not a measured yield. Its method and its sidebar also disagree on cooking time, which the FAQ explains.

Ingredients

The eleven ingredients for pork asado, each in its own plain dish
All eleven ingredients, set out before any mixing or cooking

Choosing and Preparing

  • Pork: Buy pork shoulder that is already thinly sliced. It needs no washing or further cutting.
  • Calamansi: You need the juice ready to use, so keep it close at hand when you start the marinade.
  • Onion: You peel and chop a whole white onion but use only 1 Tbsp of the chopped onion in the pot.
  • Tomato: Tomato sauce and tomato paste are separate ingredients that go in at different points.
  • Oyster sauce: This version is built around SARSAYA oyster sauce, so no other brand or product is suggested here.
  • Additions: The dish has no added oil, water, salt, pepper, garlic or herbs.
  • Labels: Check the labels of packaged ingredients for anything you need to avoid.

Equipment

  • Mixing bowl with a cover
  • Measuring spoons and cups
  • Cutting board and knife
  • Cooking pot
  • Spoon or other utensil for mixing
  • Fork
  • Clean food thermometer
  • Clean serving utensil and serving bowl

Method

Handling raw pork

Keep raw pork, its marinade, and the tools and surfaces they touch away from cooked food. Refrigerate the pork while it marinates. Tenderness, color and cooking time do not prove the pork is safe, so check the core temperature at the end.

The photos illustrate each action. They can't confirm an amount, a temperature or that the food is safe to eat.

Troubleshooting

What happened What to do
The pork is not fork-tender after 30 minutes Keep simmering and testing. The range is 30–60 minutes, and the fork test decides when to move on.
The pork is tender, but the center has not reached 75°C Keep simmering, then check the thickest slice again. It needs at least 1 minute at 75°C.
You reached for the oyster sauce too early Wait if you can. It belongs after the pork is tender, followed by only a few minutes of simmering.
You chopped far more onion than you need Use only the measured 1 Tbsp. The rest is not part of this dish.
You are unsure what to do with the raw marinade All of it goes into the pot with the pork, where it simmers. Never spoon uncooked marinade over cooked food.
The sauce looks thick during the simmer Do not add water. Keep an eye on the pot and use the fork test as your guide.

How Other Asado Recipes Differ

These are separate recipes, not adjustments to the one above. Their ingredients and amounts are not interchangeable with this version.

Recipe What sets it apart
Ajinomoto Cookmunity Pinoy Pork Asado (this article) Thin-sliced pork shoulder, calamansi, soy sauce, butter, tomato sauce and paste, brown sugar, bay, star anise, and SARSAYA oyster sauce to finish
Simpol, Old-Fashioned Pork Asado A separate recipe using pork ribs, chicken liver, fresh tomato, oil and annatto
Panlasang Pinoy Meaty Recipes, Pork Asado with Pechay A separate recipe using a commercial barbecue marinade and pechay

What the Name Covers

Simpol's page describes how asado changes from household to household, in both the meat and the way it is cooked. The three recipes above show how far apart dishes with the same name can be, so no single one should stand in for the whole country. For more dishes from the same table, see our Philippines page.

The recipe here comes from a manufacturer and is written around that company's own product. That makes it a clear, specific version to cook from, but it doesn't make it the standard.

This article makes no claim about where or when asado began, or how it should be classified. Caroline Hau's 2020 review of Clinton Palanca's My Angkong's Noodles, titled "A Lauriat of Chinese-Filipino Dishes," offers some broad context on Chinese-Filipino cooking. It is a book review rather than research on asado, and only its opening portion informs this article, so it can't support an origin story for this dish.

Frequently Asked Questions

How long does this take in total?

No single total is given here, because the published figures don't agree. The method calls for a 30-minute marinade, 30–60 minutes of simmering and a few final minutes. The recipe's sidebar lists 30 minutes of cooking. Follow the fork test and the temperature check rather than a fixed clock time.

Why are there no gram conversions for the butter, sugar or tomato sauce?

The published recipe prints some paired figures, such as 4 Tbsp butter with 80 g, 1 Tbsp chopped onion with 15 g, 1/2 cup tomato sauce with 112 ml, and 4 Tbsp brown sugar with 50 g. Those pairs haven't been verified as accurate conversions, so this article uses the leading spoon, cup and count amounts, along with the stated 60 g of oyster sauce. It doesn't assume a particular national size for the tablespoon or cup.

Does 1 tablespoon of onion really mean a whole onion goes in?

No. You peel and chop a whole onion, then measure out 1 Tbsp of it for the pot.

Why refrigerate the pork when it only marinates for 30 minutes?

The 30 minutes comes from the published recipe, which doesn't specify refrigeration. Refrigerating it is our added hygiene step for raw meat, in line with the Ministry of Health, Labour and Welfare's guidance. It isn't meant to change the flavor or ferment anything.

Is the fork test enough to know the pork is done?

No. The fork test tells you about tenderness. The separate safety check is a core temperature of 75°C for at least 1 minute, based on the ministry's guidance for pork. That check is not part of the published simmering time.

Can I use another oyster sauce, or lemon instead of calamansi?

This article doesn't offer substitutes. The recipe is written for SARSAYA oyster sauce and calamansi juice, and no adjusted amounts are available for other products.

Should I sear the pork first, or serve it with rice?

This version has no searing step, and it is served hot and plain, so rice and side dishes are not part of the recipe.

Is this Kapampangan asado?

This article doesn't make that claim. The recipe is presented as one Filipino-style pork version, with no regional origin asserted here.

How do I store or reheat leftovers?

This article covers cooking and serving the dish fresh and hot. The materials behind it give no storage period or reheating method, so none is offered here.

Sources