This Chinese-style Sweet and Sour Chicken uses black rice vinegar to create a deep, malty, and savory sauce. Try my copycat recipe of the popular dish Tori Kurozu-an from the famous Japanese diner Ootoya 大戸屋.

A white plate containing Ootoya’s Sweet and Sour Chicken.

Sweet and sour dishes from Chinese restaurants are really popular and my children love them whether they’re made with chicken or pork. Japanese-style sweet and sour chicken is a little different from the typical one you’ve tried, however.

What makes it Japanese-style? In this post, I’ll explain the key features and share my copycat recipe for Ootoya’s Sweet and Sour Chicken.

What is Japanese Sweet and Sour Chicken?

This is a copycat recipe from a popular diner in Japan called Ootoya (大戸屋), which specializes in Japanese home-cooking dishes (katei ryori 家庭料理). In Japan, we refer to the sweet and sour sauce as amazu-an (甘酢あん), literary meaning “sweet vinegar gravy.” On Ootoya’s menu, this recipe is called Tori Kurozu-An (鶏と野菜の黒酢あん).

This sweet and sour chicken has been my favorite from Ootoya’s menu since I first tried this dish years and years ago. Here are the key features of this Japanese homestyle version of the dish:

  • Uses Japanese black rice vinegar (黒酢, kurozu) – Black rice vinegar is an aged vinegar made from rice. It is less sour with a deeper flavor than regular rice vinegar and is milder than Chinese black vinegar.
  • Omits ketchup – You won’t see the typical red color in Japanese-style sweet and sour sauce.
  • Includes various vegetables – This version also contains several types of veggies not normally seen in Chinese-style sweet and sour chicken.

Ingredients for Sweet and Sour Chicken

For the Marinade:

For the Black Vinegar Sauce:

A white plate containing Ootoya’s Sweet and Sour Chicken.

How To Make Sweet and Sour Chicken

  1. Make the marinade. Grate the ginger and garlic clove. Combine with soy sauce and sake in a large bowl.
  2. Cut the chicken into bite-size pieces. Add to the marinade, coat well, and refrigerate for 10 minutes.
  3. Mix the black vinegar sauce. In a small bowl, combine the sauce ingredients and mix well to dissolve the sugar.
  4. Prep the vegetables. Cut the potatoes and carrot into small pieces and boil for 10 minutes until tender; drain. Peel and cut the lotus root and eggplant. Cut the onion and green pepper into wedges, then cut in half crosswise.
  5. Pat dry the vegetables with a paper towel and deep-fry in neutral oil until tender. Be careful not to overcook or undercook. Drain them on a wire rack or paper towel.
  6. Coat the chicken pieces in potato starch or cornstarch. Deep-fry until golden brown. Drain on a wire rack or paper towel.
  7. Toss together the deep-fried vegetables and chicken in a wok. Once reheated, add the black vinegar sauce and toss to combine. Transfer to a plate and serve.

Suage, a Japanese Deep-frying Technique

This recipe uses a Japanese cooking technique called suage (素揚げ, “su-ah-geh”). It means deep-frying without a coating of flour or batter. This technique is used mostly for vegetables, but sometimes meat, too.

The suage technique helps the ingredient keep its original flavor, color, and shape. By deep-frying vegetables for a short period of time, you can keep the crispness of the vegetables. This compares to stir-frying, which takes longer than deep-frying and sometimes cooks the veggies unevenly or makes them wilt and soften.

Packaged vs. Homemade Sweet and Sour Chicken

When I was in Japan last summer, I shared on Instagram a picture of this dish while dining there. A JOC reader in Australia left a comment saying that Ootoya actually sells a pre-made package of this special kurozu-an sauce. So the next time I passed by the restaurant, I bought two packages to try back at home.

Ootoya’s Sweet and Sour Chicken Sauce

After returning to the US, I made this dish at home with the packaged sauce, then tried to recreate this flavor. While testing my own recipe, I found out Ootoya actually shares the recipe for this dish online! So I made 3 batches for the taste test:

  1. Ootoya’s packaged sauce
  2. Ootoya’s online recipe
  3. My homemade version of Ootoya’s sauce

Our family had a serious tasting session for this recipe and one sauce won everyone’s votes for the best flavor. It was actually mine! My version was not that different from the original sauce, but in my humble opinion, I think mine has a better balance than the packaged one or the Ootoya’s recipe.

However, I still think the restaurant serves the best Tori Kurozu-An! For home cooking, though, my family agrees that my recipe was the best. I wrote down the exact measurements I used, so please try to be accurate for the best result.

If you have a chance, try this dish at one of Ootoya locations both in Japan and elsewhere like Singapore, China, Taiwan, Thailand, Hong Kong, Indonesia, and New York City in the US.

A white plate containing Ootoya’s Sweet and Sour Chicken.

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A white plate containing Ootoya’s Sweet and Sour Chicken.

Sweet and Sour Chicken (Ootoya Tori Kurozu-An)

4.61 from 33 votes
This Chinese-style Sweet and Sour Chicken uses black rice vinegar to create a deep, malty, and savory sauce. Try my copycat recipe of the popular dish Tori Kurozu-an from the famous Japanese diner Ootoya 大戸屋.

Video

Prep Time: 30 minutes
Cook Time: 30 minutes
Total Time: 1 hour
Servings: 2

Ingredients
 
 

For the Marinade

  • 1 tsp ginger (grated, with juice)
  • 1 clove garlic
  • 2 Tbsp soy sauce
  • 1 Tbsp sake

For the Black Vinegar Sauce

Japanese Ingredient Substitution: If you want substitutes for Japanese condiments and ingredients, click here.

Instructions
 

  • Gather all the ingredients.
    Sweet and Sour Chicken IngredientsSweet and Sour Chicken Ingredients
  • Make the marinade. Grate the ginger and collect 1 tsp ginger (with juice). Grate 1 clove garlic. Combine the ginger, garlic, 2 Tbsp soy sauce, and 1 Tbsp sake in a large bowl.
    Sweet and Sour Chicken 1
  • Trim off and discard any excess fat from 2 chicken thighs, then cut the meat into bite-sized pieces and add them to the marinade. Cover and refrigerate for 10 minutes.
    Sweet and Sour Chicken 2
  • Combine all the ingredients for the Black Vinegar Sauce: 4 Tbsp sugar, 3 Tbsp apple cider vinegar, 2 Tbsp soy sauce, 1 Tbsp Japanese black vinegar (kurozu), 1 Tbsp mirin, 1 Tbsp water, 1 Tbsp sake, and 2 tsp potato starch or cornstarch. Mix it well together.
    Sweet and Sour Chicken 3
  • Peel and cut 3 potatoes in half. Peel and cut ½ carrot into small pieces. For the carrot, I use the rangiri cutting technique to create more surface space so that they will cook faster and look pretty.
    Sweet and Sour Chicken 4
  • Potatoes and carrots take too long to cook by deep-frying alone; therefore, we boil them first for 10 minutes until they are tender. Drain and set aside.
    Sweet and Sour Chicken 5
  • Peel and cut 3 inches lotus root (renkon) into ⅛-inch (3-mm) slices. Peel 1 Japanese or Chinese eggplant in a striped pattern and cut it into ½-inch (1.3-cm) slices.
    Sweet and Sour Chicken 6
  • Cut ½ onion into wedges and cut the wedges in half crosswise. Cut ½ green pepper into wedges, then cut the wedges in half crosswise.
    Sweet and Sour Chicken 7

To Cook

  • In a deep fryer or heavy-bottomed pot, add 3 cups neutral oil. Make sure you have at least 2 inches (5 cm) of oil in the pot. Depending on the size of your pot, you may need more or less oil. If you are new to deep-frying, read my post on How to Deep-Fry Food for helpful tips. Preheat the oil to 340ºF (170ºC). Using a paper towel, pat dry the vegetables. Then, add them to the oil and deep-fry until they‘re tender. Be careful not to overcook or undercook. When they’re done, drain them on a wire rack or paper towel.
    Sweet and Sour Chicken 8
  • Next, coat the chicken pieces in ½ cup potato starch or cornstarch and deep-fry at 340ºF (170ºC) for 5 minutes or until golden brown. If the chicken is browning too quickly, lower the heat to make sure the chicken gets cooked through. Then, place the chicken pieces on a wire rack or paper towel and drain well.
    Sweet and Sour Chicken 9

To Add the Sauce and Serve

  • When you‘re done deep-frying the chicken, reheat the wok and toss the deep-fried vegetables and chicken together. When they are re-heated evenly, pour the Black Vinegar Sauce over the chicken and vegetables and toss to combine. Transfer the Sweet and Sour Chicken to a plate and serve.
    Sweet and Sour Chicken 10

To Store

  • You can keep the leftovers in an airtight container and store in the refrigerator for up to 3 days.

Notes

This recipe is slightly adapted from Ootoya Tori Kurozu-An recipe.
Are you new to deep-frying? Read my post about  How to Deep-Fry Food.
Recipe by Namiko Chen of Just One Cookbook. All images and content on this site are copyright protected. Please do not use my images without my permission. If you’d like to share this recipe on your site, please re-write the recipe and link to this post as the original source. Thank you.

Nutrition

Calories: 1079 kcal · Carbohydrates: 110 g · Protein: 38 g · Fat: 54 g · Saturated Fat: 11 g · Polyunsaturated Fat: 21 g · Monounsaturated Fat: 17 g · Trans Fat: 1 g · Cholesterol: 153 mg · Sodium: 1136 mg · Potassium: 2441 mg · Fiber: 14 g · Sugar: 23 g · Vitamin A: 2812 IU · Vitamin C: 99 mg · Calcium: 104 mg · Iron: 5 mg
Author: Namiko Hirasawa Chen
Course: Main Course
Cuisine: Japanese
Keyword: chicken
©JustOneCookbook.com Content and photographs are copyright protected. Sharing of this recipe is both encouraged and appreciated. Copying and/or pasting full recipes to any website or social media is strictly prohibited. Please view my photo use policy here.
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4.61 from 33 votes (20 ratings without comment)
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I doubled the amount of sauce for a Costco 2-pack of chicken wings (about 28 pcs.). Kicked it up by sprinkling a handful of chopped green onions and a half-cup of finely chopped pan roasted peanuts to add a Cantonese touch.5 stars

Hi Mike!
Wow, 28 pcs chicken wings! We are so glad to hear you enjoyed it with Cantonese touch.
Thank you very much for trying this recipe and for your kind feedback!

Hi Nami

I just want to thank you for this flavourful Ootoya Sweet and Sour Chicken Recipe. It is a real hit with my family. I have also tried replacing the chicken meat with pork and it turns out just as beautifully. Am also glad to be able to replace the ketchup used in most sweet and sour dishes with healthier ingredients like black vinegar, apple cider vinegar and soy (we are thankful that these sauces are found commonly in Singapore). I try to cook something from your list of recipes at least once a week. Thank you again and stay healthy. Love your new pet dog.

Best
CA5 stars

Today I made it, tasted so good. i cannot believe I can make this!! my family loved it so much. thanks for your recipe!!!5 stars

Hi Nami, is there any substitute for the black vinegar?

This is one of my favorites from Ootoya, so I was glad to find it! I found that 10 minutes was too long for the carrots and potatoes for my preference, so I’d change that in the future. And maybe I’d sub some of the apple vinegar for more black vinegar, but that depends so much on which kinds you have around and what you like.5 stars

Hi can I check with you.. if I do not want to use Apple cider vinegar, what can I substitute with ?

hi! Nami. Just cooked this tonight for dinner (sans lotus root) . Was skeptical about the apple cider vinegar at first (been using ketchup for this type of dish)…. But lo and behold, I loved the combination of flavors 🙂 No leftovers again tonight 🙂 Have been trying many recipes found over the net and there have been definitely a lot of hit and miss ones. This is definitely a hit. So much so that my sister said that we can now add it to the list of dishes worth repeating ….. Thank you so much!5 stars

Hi there, I have just found your website and have made two recipes so far and they were beautiful! So your site is my now ‘go to’ for recipes! Is there a substitute I could use for the black vinegar? I love in the far north of New Zealand and we don’t have much in the way of speciality foods. Thank you so much for the fantastic recipes!

Thanks for the recipe! Do you know how long the vegetables and the chicken should be deep fried until it’s cooked?

Ever since I had the appetizer portion at Ootoya in Chelsea, I’ve been hooked! I had two friends over for dinner and one of them had just had this dish the day before. The bar was high but it definitely turned out above our expectations! It tasted just as good and we were glad to have doubled the recipe.

The most challenging part was deep frying the vegetables; we were unclear as to how long to fry the different veggies, which needed a bit of a trial and error process. I was a bit speculative with the sauce but it thickened very well once thrown with the fried ingredients over heat. All we needed was a bowl of rice and a nice miso soup to help cleanse the palate. Thank your for posting the recipe! Cheers.

Great recipe! I made it yesterday and it is so far the best sweet-sour sauce I have ever tried 🙂 What I didn’t like that much are the deep-fried vegetables. It is impossible to make them crispy without batter, so in the end they all turned out mushy and soft. Next time I will stir fry-them for a short time separtly so that they stay a little bit crunchy 🙂

Wonderful recipe, thanks for sharing Nami!

While living in Japan for several years this Ootoya dish quickly became our favorite family comfort food. You have no idea how happy I am to have stumbled upon your site! I can’t wait to make this as a surprise for my family. Oishii!

I have been trying to figure this recipe out for YEARS…ever since having it at Ootoyo… I’m so glad I stumbled upon your website!!!! I am curious about your Black Vinegar though… I haven’t seen the Japanese stuff anywhere… could you recommend a brand to buy online? THANKS NAMI!!!

Thats ok! 🙂 Glad I could help! 😉

I’m so so so excited to make this! I’m going to show my mum and we will try and make it! I’ll make sure I take a picture once I do!

Do Japanese supermarkets/stores in the states have Japanese black vinegar? I’m not sure if I’ve seen it here in Australia before.

Thanks for sharing this recipe! I’ve always kept and used black vinegar in my pantry, but never quite knew the technical difference between black vinegar and the regular stuff until reading your explanation. In other news, I made your kakuni recipe for a recent potluck, and the dish was a major hit!! =)