Ingredients
3 tablespoons light brown sugar
2 tablespoons soy sauce
2 tablespoons mirin
1 tablespoon sherry vinegar
1 tablespoon whole grain mustard
1 tablespoon water
1 teaspoon cornstarch
1/8 teaspoon red pepper flakes
Preparation
Whisk ingredients together in small saucepan. Bring to boil over medium-high heat; simmer until thickened, about 1 minute. Remove from heat and cover to keep warm.