Ingredients

1 cup hoisin sauce 

1/4 cup rice-wine vinegar 

1/3 cup finely minced yellow onion 

1 tablespoon ground-chile paste, or to taste 

1 tablespoon finely chopped roasted peanuts 

Preparation

Combine 1/2 cup water, hoisin sauce, vinegar, and onions in a small saucepan; bring to a boil over medium-high heat. Reduce heat to low; simmer until onions have softened, 7 to 9 minutes. If sauce becomes too thick, add water. Let cool. Transfer to a serving dish; top with chile paste and peanuts.