Quick Tonkatsu Sauce



Preparation info

  • Difficulty


  • Makes: About

    ½ cup

Appears in

Japanese Food Made Easy

Japanese Food Made Easy

By Aya Nishimura

Published 2020

  • About

Tonkatsu sauce is the Japanese equivalent to British brown sauce. You will find ready-made tonkatsu sauce in any Japanese grocery store, Asian food store or online. However, it’s not too difficult to make from scratch. Here is my quick, easy-to-prepare version. Try it with Okonomiyaki or Kushikatsu.



  • ½ teaspoon freshly squeezed lemon juice


  • 2 tablespoons tomato sauce (ketchup)
  • ¼ cup (60 ml) Worcestershire sauce
  • 2 teaspoons dijon mustard
  • 4 teaspoons soy sauce
  • ¼ cup (45 g) light brown sugar
  • a pinch of sea salt
  • ¼ cup (40 g) white sesame seeds, toasted, optional


Mix the tomato sauce, Worcestershire sauce, mustard, soy sauce, sugar, lemon juice and salt in a bowl until well combined.

If you are making this to store, don’t add the sesame seeds at this stage. Store the sauce in the fridge in a clean, screw-top jar for up to a month.

Place the toasted sesame seeds in a suribachi or mortar and coarsely grind. Mix them into the sauce just before serving.