Tonkatsu sauce, or Katsu sauce, is a Japanese bbq sauce that is a condiment for deep fried katsu dishes like chicken katsu or pork tonkatsu. Here's a super simple Tonkatsu sauce recipe that you can make with pantry ingredients in less than 5 minutes!
Mix together ketchup, worcestershire sauce, oyster sauce, and brown sugar in a bowl until smooth.
Let chill in the fridge for 15-30 minutes in the fridge to let the flavors meld together. Serve as a dipping sauce for katsu or drizzle it on vegetables, or salads and enjoy!
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Notes
Adjust to your liking - Some brands of ketchup are sweeter than others - make sure to taste the sauce and adjust to your liking. This is also dependent on if you like your sauce on the sweeter or saltier side!Let the flavors meld - It's important to let the tonkatsu sauce chill in the refrigerator for at least 30 minutes before serving. This will allow the flavors to meld together and create a more cohesive sauce.Storage - Once mixed, store your homemade Tonkatsu (Katsu) sauce in an airtight container in the refrigerator for up to 1 month. Avoid dipping directly into the sauce container; you want to avoid any cross-contamination or crumbs in your tonkatsu sauce!