Roy Yamaguchi's Soy-Mustard Sauce (a.k.a. 3-Ingredient Steak Sauce)

By lorik

Makes: 3/4 cup
Prep time: 1 hrs
Cook time: 10 min

Ingredients

• 1/4 cup mustard powder, preferably Colman’s
• 2 tablespoons hot water
• 2 tablespoons rice wine vinegar
• 1/4 cup soy sauce

Details

Cooking time 60mins
Adapted from

Preparation

Step 1

Mix the mustard powder and hot water together in a cup to form a paste. Let sit for a few minutes to allow the flavor and heat to develop.

Add the vinegar and soy sauce, mix together, and pass through a fine-mesh sieve into a bowl.

Yamaguchi recommends covering and refrigerating for at least 1 hour to allow the flavors to develop, but the sauce will still taste delicious right away if you're in a hurry. Serve with steak, or anything else you like (see headnote above for ideas).