Authentic home cooking from Japan, with US measurements.

Originally published on Cookpad Japan as お弁当に重宝♪鶏むね肉のケチャップ炒め

Great for Bento Boxes: Stir-Fried Chicken Breast with Ketchup Sauce

Name: Great for Bento Boxes: Stir-Fried Chicken Breast with Ketchup Sauce
Yield: Makes 3–4 bento servings
Ingredients: 1 chicken breast (about 7–9 oz or 200–250 grams); As needed ◎ Sake and soy sauce (for marinating the chicken); As needed ◎ Potato starch (or cornstarch); 3 tablespoons ★ Ketchup (about 45 ml); 1 1/2 tablespoons ★ Worcestershire-style sauce (about 22 ml; use half the amount of ketchup); 1 pinch each ★ Black pepper and butter

moj @moj5

東京都世田谷区

★Thank you for 3,000 reviews!★ With just a little extra effort, chicken breast turns out juicy! This ketchup-based sauce tastes great even when cold, and the secret touch of butter really brings out the flavor.
Recipe background:
I always end up buying 1 kg of chicken breast when it's on sale. I cut it into bite-sized pieces and soak it in sake and soy sauce to keep it fresh, so I can add it to bento boxes every day! Coat with potato starch and pan-fry until golden. You can change up the flavor with sweet and savory sauces, oyster sauce, ketchup, or sweet vinegar—highly recommended!

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Ingredients

Makes 3–4 bento servings

1chicken breast (about 7–9 oz or 200–250 grams)
As needed◎ Sake and soy sauce (for marinating the chicken)
As needed◎ Potato starch (or cornstarch)
3 tablespoons★ Ketchup (about 45 ml)
1 1/2 tablespoons★ Worcestershire-style sauce (about 22 ml; use half the amount of ketchup)
1 pincheach ★ Black pepper and butter

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Steps

1

Slice the chicken breast into bite-sized pieces (about the size of chicken nuggets). Marinate in a mixture of sake and soy sauce (about a 4:1 ratio).
2

Coat the chicken pieces with potato starch. Heat a generous amount of oil in a frying pan and cook the chicken until golden brown.
Tip: If making a large batch, put the chicken and starch in a plastic bag and shake to coat quickly!
3

Add the ketchup and Worcestershire-style sauce to the pan and toss to coat the chicken well. Finish by adding butter and black pepper.
Tip: Lower the heat to prevent burning.
4

On January 27, 2025, my book "Rice You Can't Stop Eating! moj's Repeat Meals" will be published! Thank you all so much!

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Cooksnaps

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moj @moj5

Published in the US on August 07, 2025 14:01

東京都世田谷区

モジャです！エンジニアでモノ作り＆子どもが大好き。食材からお料理が生まれるのはまさにモノ作り、わくわくしながら調理楽しんでいます！ロボコン大好き機械科卒業した長男（今はエンジニアの夢をかなえ独立）、体育学科を卒業した次男（体育の先生として日々奮闘）の子育て中に登場したササッと作るガッツリ丼をUPしています。楽チン&旨いがお料理コンセプト♪脂身がダメな長男は鶏胸肉、ささみ、ひき肉、野菜好きの次男には毎日の大量サラダが必須です。●東京都世田谷で子どもプログラミング教室「ナレッジ・プログラミングスクール」を運営中、日々子ども達とモノ作りを楽しんでます。●2025年「白米が止まらない！mojのリピートご飯」（宝島社）出版しました。●2025年9月NHK総合「激突メシあがれ」（キャベツまるごとの回）に出演（市川葉子の名前で）、優勝しました(^^)/

Keywords

Fried Chicken Chicken Breast Sake Pepper Butter Chicken Potato Soy

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