Steamed chicken dressed with a Sichuan-style sauce of Sichuan pepper and scallion greens
CuisineChinese (Sichuan)

Jiao Ma Ji: Sichuan Cold Steamed Chicken with Sichuan Pepper and Scallion Oil (椒麻雞)

How to make jiao ma ji (椒麻雞 / 椒麻鸡), a Sichuan-style cold dish of steamed boneless chicken thigh dressed with scallion greens and crushed Sichuan pepper bloomed in hot rapeseed oil, then loosened with the chicken's own steaming juices, salt and a little sesame oil. Covers how it differs from fried Taiwanese jiao ma ji and red chili-oil chicken, choosing the pepper and oil, checking doneness with a thermometer, and handling the chilled chicken safely.

Cooking flow

Cooking steps

STEP 11 / 22

Rub salt into both sides of the chicken

Hands rubbing salt into both sides of boneless chicken thighs
Salt both sides of the raw chicken on a tray used only for raw meat

Put the chicken thighs on a raw-meat-only tray. Do not rinse the raw chicken. Rub a little salt over both sides. Wash your hands after handling raw chicken, and keep the tray and anything it touched away from cooked food.

STEP 22 / 22

Lay the chicken skin-side up in a deep dish

Placing chicken skin-side up in a deep heatproof dish
Skin-side up in a deep dish, so the steaming juices are caught

Place the salted thighs skin-side up in a deep heatproof dish. The dish needs to be deep enough to hold the juices that collect during steaming.

STEP 33 / 22

Add a few Sichuan peppercorns

Placing a few Sichuan peppercorns on the chicken
Only a few whole peppercorns go on the chicken

Scatter just a few whole Sichuan peppercorns over the chicken.

STEP 44 / 22

Fill the steamer with water

Pouring water into a steamer base following the maker's instructions
Use the water amount your steamer's instructions give

Pour water into the base of your steamer, using the amount its maker directs. Keep the chicken dish to one side until the steamer is ready.

STEP 55 / 22

Steam the chicken

Chicken steaming in a deep dish on a steamer rack
Steam skin-side up in the deep dish until cooked through

Bring the steamer to a steady steam, set the dish of chicken on the rack and cover. Steam until the chicken is cooked through. Thicker pieces and different steamers take different amounts of time, so move on to the thermometer check rather than going by the clock.

STEP 66 / 22

Check the center with a thermometer

Checking the center of the chicken with a thermometer
Check the thickest part: 75°C at the center for at least 1 minute

Insert the thermometer probe into the thickest part of each thigh. The center must reach 75°C and stay at that temperature for at least 1 minute. If it has not, cover and keep steaming, then check again. Do not judge doneness by the color of the meat or the juices.

STEP 77 / 22

Set aside the steaming juices

Pouring the steaming juices into a clean bowl
Keep the juices in a clean bowl; they go into the sauce

Lift the cooked chicken onto a clean plate with clean tongs. Pour the juices from the dish into a clean small bowl and keep them for the sauce. Use them soon, and do not leave them sitting out.

STEP 88 / 22

Pass the chicken through ice water

Lowering cooked chicken into clean ice water
Chill the cooked chicken in clean ice water

Using clean tongs, lower the cooked chicken into a clean bowl of ice water made with drinking water and ice.

STEP 99 / 22

Pat the chicken dry

Patting the surface of the chicken dry with clean paper towels
Pat away the surface water with clean paper towels

Lift the chicken out and pat off the water with clean paper towels. If you are not making the sauce right away, cover the chicken and refrigerate it promptly.

STEP 1010 / 22

Finely chop the scallion greens

Finely chopping the green parts of scallions
Use only the green parts, chopped fine

Chop the green parts of the scallions finely. The finer they are, the better they come together with the pepper and oil.

STEP 1111 / 22

Crush the Sichuan peppercorns

Crushing Sichuan peppercorns in a mortar
Crush the peppercorns rather than leaving them whole

Crush the peppercorns for the sauce in a mortar. Breaking them up helps their aroma blend into the sauce.

STEP 1212 / 22

Combine scallion and pepper in a large heatproof bowl

Combining finely chopped scallion and crushed Sichuan pepper in a large heatproof bowl
A roomy heatproof bowl leaves space for the hot oil

Put the chopped scallion greens and the crushed pepper together in a large, roomy heatproof bowl. A big bowl gives the hot oil room to bubble without spilling over.

STEP 1313 / 22

Heat the rapeseed oil

Heating rapeseed oil in a small saucepan
Heat until a dipped chopstick tip gathers small bubbles

Heat the rapeseed oil in a small saucepan. It is ready when small bubbles form around the tip of a chopstick dipped into it. Stay with the pan the whole time.

STEP 1414 / 22

Pour the hot oil over the scallion and pepper

Pouring hot oil over scallion greens and Sichuan pepper
Pour slowly into the large bowl and let it sizzle

Slowly pour the hot oil over the scallion and pepper in the bowl, keeping your hands and face back from any spatter.

STEP 1515 / 22

Stir the oil, scallion and pepper together

Stirring the hot oil with scallion and Sichuan pepper
Mix until everything is coated in oil

Stir so all the scallion and pepper is coated with the hot oil.

STEP 1616 / 22

Add a little steaming juice

Adding a little steaming juice to the sauce
A little of the chicken's own juices loosens the sauce

Spoon in a little of the reserved steaming juices to loosen the sauce.

STEP 1717 / 22

Season with salt

Seasoning the sauce with salt
Season the sauce with salt, a pinch at a time

Add salt to taste, a little at a time.

STEP 1818 / 22

Add a little sesame oil

Adding a little sesame oil to the sauce
Just a little sesame oil for the final aroma

Drizzle in a little sesame oil.

STEP 1919 / 22

Mix the sauce

Mixing the finished sauce
Stir gently and taste before it goes on the chicken

Stir the sauce gently until it comes together. Taste and adjust the salt.

STEP 2020 / 22

Slice the chilled chicken

Slicing the chilled chicken into easy pieces
Use a clean board and knife kept apart from raw meat

On a clean board with a clean knife, cut the chilled chicken into easy bite-size pieces.

STEP 2121 / 22

Arrange the chicken on a plate

Arranging the sliced chicken on a plate
Lay the slices out on a plain plate

Arrange the sliced chicken on a serving plate with clean chopsticks.

STEP 2222 / 22

Spoon the sauce over the chicken

Spooning the jiao ma sauce over the plated chicken
Spoon the sauce over the chicken just before serving

Spoon the scallion and pepper sauce over the chicken and serve.

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Ingredients

Ingredients

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Ingredients

Ingredient Amount Role
Boneless chicken thighs, skin on (去骨清腿) 2 thighs (a supermarket 2-pack is fine) Steamed, chilled, then sliced
Salt (for the chicken) A little Rubbed on both sides before steaming
Whole dried Sichuan peppercorns (花椒, for the chicken) A few Placed on the chicken while it steams
Whole dried Sichuan peppercorns (花椒, for the sauce) As needed Crushed and mixed with the scallion greens
Scallion greens, green parts only (蔥綠) 1 handful Finely chopped; takes the hot oil
Rapeseed oil (菜籽油) As needed Heated and poured over the scallion and pepper
Steaming juices from the chicken A little Loosens the sauce and adds the chicken's savoriness
Salt (for the sauce) To taste Seasons the sauce
Sesame oil (麻油) A little Final aroma in the sauce
Water for the steamer As your steamer's instructions direct Makes the steam; not eaten
Ice water (clean drinking water and ice) As needed Chills the cooked chicken; not eaten
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Jiao Ma Ji: A Cold Chicken Dish Led by Green Scallion and Sichuan Pepper, Not Red Heat

What this plate should keep

Gently steamed chicken, served cold. A sauce that tastes of the numbing fragrance of Sichuan pepper, the sharp green aroma of scallion leaves and warm rapeseed oil, rounded out with the chicken's own juices. No chili.

In a century-old historic building in Taiwan that now houses the Kishu-an (紀州庵) teahouse, the writer Ma Shifang (馬世芳) offered a Sichuan-style jiao ma ji for a feature on writers' home cooking, published by the Taiwanese food site Supertaste (TVBS) in December 2024. Ma describes it as a dish also made at home as a cold starter for guests: the ingredients are easy to find, it suits any season, and it goes with tea or with drinks.

The version described there is simple. Boneless chicken thighs are rubbed with salt and steamed skin-side up with a few Sichuan peppercorns. The cooked chicken goes through ice water, and the juices from the steaming dish are kept. Finely chopped scallion greens and crushed Sichuan pepper go into a bowl, hot rapeseed oil is poured over them, and the sauce is finished with some of those steaming juices, salt and a little sesame oil. The chicken is cut into easy pieces and the sauce goes on top. Ma notes that this home version uses no chili at all.

This article follows that Sichuan cold-dish style. The name jiao ma ji (椒麻雞, simplified 椒麻鸡, jiāo má jī) is also used for quite different dishes, so it helps to be clear from the start: here, jiao means Sichuan pepper, not chili, and ma is its tingling, numbing quality.

About the amounts

This recipe has not been kitchen-tested by Sekai Gohan. In Ma Shifang's recipe, salt, Sichuan pepper, oil, steaming juices and sesame oil are given as "a little", "to taste" or "as needed" rather than as measured amounts. The two chicken thighs are a shopping suggestion, not a promised number of servings. There is also no fixed steaming time: you check doneness with a food thermometer instead.

If you are exploring the wider table, you can find more dishes on our China country page.

Ingredients: Chicken, Sichuan Pepper, Scallion Greens and Two Oils

Chicken thighs, Sichuan peppercorns, scallion greens, rapeseed oil, sesame oil and salt laid out
Only a handful of ingredients: chicken, salt, Sichuan pepper, scallion greens, rapeseed oil and sesame oil

Salt and Sichuan pepper are each used twice: once on the chicken and once in the sauce. Water for the steamer and ice water for chilling are working supplies, not part of the dish.

Choosing the Pepper, Oil, Scallions and Chicken

Sichuan pepper. Look for whole dried Sichuan peppercorns at a Chinese grocer or online. Crush them yourself just before making the sauce. Japanese sansho can stand in, but its aroma and numbing feel are different, so the dish will not taste the same.

Rapeseed oil. The aromatic edible rapeseed oil used in Sichuan cooking is what gives this sauce its distinctive aroma. Ordinary refined rapeseed oil from a supermarket will work, but it does not have the same aroma. Neutral vegetable oil or olive oil can also be used, though the flavor moves further from the Sichuan style.

Scallion greens. Use only the green, leafy parts and chop them finely. The green tops of Japanese long onion (negi) can stand in. Thinner, more delicate scallions change both the aroma and how much moisture goes into the sauce.

Sesame oil. Toasted sesame oil sold in many countries is strongly fragrant, so start with a small amount and adjust.

Chicken. Skin-on boneless thighs are the standard here. Skinless thighs also work, but you lose the soft texture of the steamed skin.

Equipment

  • Raw-meat-only tray or board for salting the chicken
  • Deep heatproof dish that fits inside your steamer
  • Stovetop steamer with a rack and lid (or another steamer you know well; follow its own instructions for water)
  • Food thermometer with a probe
  • Clean small bowl for the steaming juices
  • Clean bowl for ice water, and clean tongs used only for cooked chicken
  • Clean paper towels
  • Clean cutting board and knife for the cooked chicken, separate from those used for raw meat
  • Board and knife for the scallions
  • Mortar and pestle for crushing the peppercorns
  • Large, roomy heatproof bowl for the sauce
  • Small saucepan for heating the oil
  • Chopsticks and a spoon
  • Serving plate

Method: Steam, Chill, Then Pour Hot Oil over Scallion and Pepper

The thermometer decides, not the color

Steaming time depends on the thickness of the chicken and on your steamer, so no time is fixed. The chicken is done when its center has reached 75°C and stayed there for at least 1 minute. The photos show each action only; they cannot show temperature, time or hygiene.

When Something Goes Wrong

Problem Likely cause What to do
The thermometer reads below 75°C at the center Thick pieces or a gentler steamer Cover and keep steaming, then check again until the center holds 75°C for at least 1 minute. Don't go by color
The sauce tastes of separate bits rather than one aroma Scallion cut coarsely, peppercorns left whole Next time chop the green parts finely and crush the peppercorns. Whole peppercorns scattered in quantity don't blend into the sauce
The scallion barely sizzled and the aroma is flat The oil was not hot enough Heat the oil until a dipped chopstick tip gathers small bubbles. Use a large heatproof bowl so the oil can bubble safely
No steaming juices left for the sauce The juices were poured away The juices are the backbone of the sauce and are hard to replace. Next time, set them aside in a clean bowl right after steaming
Sesame oil is overpowering Toasted sesame oil is strong Add less next time and taste as you go

Serving and Leftovers

Bringing the finished cold dish to the table
Serve cold, soon after the sauce goes on

Jiao ma ji is a cold dish, but that does not mean leaving it out to cool. Chill the chicken in ice water rather than at room temperature, and serve the dish soon after it is dressed.

Keeping it safe

Eat it promptly. Whatever you will not eat right away, cover and refrigerate promptly at 4°C or below, and do not leave it at room temperature for more than 2 hours in total. Avoid long periods at room temperature in general. This is general food-handling guidance, not a guarantee of how many days it will keep.

Variations to Try Separately

Keep the basic recipe as it is the first time, and try these one at a time:

  • Green Sichuan pepper (青花椒). It brings a different, fresher fragrance. Treat it as a variation with its own aroma rather than the same flavor.
  • Different rapeseed oils. Oils differ by origin and pressing, and the aroma of the sauce changes with them.
  • Skin-on or skinless thighs. Compare the soft steamed skin with the leaner texture of skinless meat.
  • Pepper at the table. Keep some crushed Sichuan pepper on the side so each person can add more numbing heat to their own portion.
  • A refreshing side. A plain, light daikon dish served alongside, as a separate dish, balances the oil of the sauce.

Background: One Name, Several Different Dishes

The Sichuan Cuisine Research Archive of Chen's Private Kitchen (陳家私菜) describes jiao ma ji as a Sichuan cold dish of chicken that is poached or steamed, cooled and eaten with a jiao ma sauce of Sichuan pepper and scallion chopped finely together, loosened with oil and chicken stock. In that description the heart of the jiao ma flavor is the numbing fragrance of the pepper, the green aroma of scallion leaves, salt, savoriness and the oil that pulls them together.

The same name covers other dishes. In Taiwan, a "Thai-style" jiao ma ji (泰式椒麻雞) is fried chicken with a sweet, sour and spicy red sauce. In Xinjiang there is a version tossed with long thin chilies (線辣椒) and onion. Within Sichuan cooking it also stands apart from kou shui ji (口水雞, "mouth-watering chicken") with its red chili-oil sauce, teng jiao ji (藤椒雞) made with green "vine pepper" oil, and bang bang ji (棒棒雞) with shredded chicken. It is also a different world from red, chili-heavy Sichuan dishes such as water-boiled fish or mapo tofu.

Professional kitchens have their own versions. The Chinese chefs' site cswzg.com carries a restaurant-scale jiao ma ji pian (椒麻鸡片) in which the chicken is started in cold water, finished in residual heat, chilled in ice water and boned, then dressed with a pounded paste of scallion, dried Sichuan pepper and salt mixed with stock and several other seasonings. It is a different formula and method, and nothing from it has been mixed into the home recipe above.

Where and when jiao ma ji first appeared could not be confirmed, so this article makes no claim about its origin or an originating restaurant.

Frequently Asked Questions

Is Sichuan-style jiao ma ji spicy?

Not in the chili sense. The home version this recipe follows uses no chili; Ma Shifang says so directly. What you feel is the tingling, numbing ma of Sichuan pepper, along with the sharp aroma of scallion greens.

Is it the same as mouth-watering chicken (kou shui ji)?

No. Both are cold chicken dishes from Sichuan, but kou shui ji is dressed in a red chili-oil sauce, while jiao ma ji is built on Sichuan pepper and scallion greens in oil, loosened with the chicken's juices.

Can I use Japanese sansho instead of Sichuan pepper?

You can, as a substitute. The two are related, but the aroma and the numbing sensation are not the same, so expect a different result.

How long should I steam the chicken?

No steaming time is given in the recipe this article follows, and it varies with the thickness of the chicken and your steamer. Instead of a time, use a food thermometer: the center should reach 75°C and stay there for at least 1 minute. This standard comes from the food-poisoning prevention guidance of Japan's Ministry of Health, Labour and Welfare. Shenzhen's market regulator likewise recommends a center temperature of 75°C for cooked foods including chicken, checked with a thermometer.

The recipe mentions 1.5–2 cups of water for an electric cooker. How much is that?

Ma's version steams the chicken in a Taiwanese electric cooker (電鍋), with 1.5–2 cups of water in the outer pot measured with the cooker's own cup. The capacity of that cup isn't stated, so it is not converted here. With any other steamer, use the water amount its maker directs.

Can I use ordinary vegetable oil or olive oil?

Ma notes that salad oil or olive oil can be used, but considers aromatic Sichuan rapeseed oil the real thing; with other oils the taste moves away from it. Ordinary refined rapeseed oil also lacks the aroma of Sichuan rapeseed oil.

How should I store leftovers?

Cover and refrigerate promptly at 4°C or below, and don't let it sit at room temperature for more than 2 hours. No storage period in days is given.

Sources

  • Ma Shifang (馬世芳), "百年古蹟裡吃作家私房菜!川式椒麻雞只麻不辣,吃得到正宗川菜2靈魂食材," Supertaste (食尚玩家) / TVBS. The home Sichuan-style recipe followed here: salted boneless chicken thighs steamed skin-side up with a few Sichuan peppercorns, ice water, reserved steaming juices, hot rapeseed oil over finely chopped scallion greens and crushed pepper, seasoning with juices, salt and a little sesame oil; the author's teahouse and home serving; no chili in this version. https://supertaste.tvbs.com.tw/amp/food/352492
  • Sichuan Cuisine Research Archive (Chen's Private Kitchen 陳家私菜, supervised by Chen Pangyong), "椒麻鸡." Used only to describe the jiao ma flavor type as a Sichuan cold dish and to distinguish it from the Xinjiang and Taiwanese dishes of the same name and from teng jiao ji, kou shui ji and bang bang ji. https://chin-z.com/shisen/dishes/dish-118.html
  • 中国厨师网 (cswzg.com), "〖川菜〗椒麻鸡片." A restaurant-scale Sichuan jiao ma chicken with a different formula and method, used for comparison only. The original publication this page was compiled from could not be confirmed. https://cswzg.com/news/toutiao/2019/0619/454.html
  • Shenzhen Administration for Market Regulation (深圳市市场监督管理局), "食品安全五要点,业界指南不可少." General food-safety guidance: 75°C center temperature for cooked foods including chicken with a thermometer, separating raw and cooked foods, refrigeration at 4°C or below, and not exceeding 2 hours at room temperature. https://amr.sz.gov.cn/xxgk/qt/ztlm/spaq/kpxt/sats/content/post_1932041.html
  • Ministry of Health, Labour and Welfare, Japan (厚生労働省), "家庭でできる食中毒予防の6つのポイント." Heating to 75°C at the center for at least 1 minute, clean utensils, separating raw and cooked foods, and avoiding long periods at room temperature. https://www.mhlw.go.jp/topics/syokuchu/dl/point0709.pdf