- 1 cup prepared yellow mustard
- 3/4 cup cider vinegar
- 1/2 cup brown sugar
- 1/4 cup white sugar
- 1/4 cup water
- 1/4 cup white vinegar
- 1 tablespoon chili powder
- 1 teaspoon ground black pepper
- 1 teaspoon ground white pepper
- 1/2 teaspoon cayenne pepper
- 1/2 teaspoon soy sauce
- 2 tablespoons salted butter
- 1 teaspoon liquid smoke flavoring
- Combine yellow mustard, cider vinegar, brown sugar, white sugar, water, vinegar, chili powder, black pepper, white pepper, cayenne pepper, and soy sauce in a saucepan over medium-low heat; cook and stir until flavors blend, about 20 minutes. Add butter and liquid smoke flavoring and simmer for 10 minutes more.