South Carolina Barbecue Sauce - cooking recipe

Ingredients

1/2 c. prepared mustard
6 Tbsp. sugar
1 c. cider vinegar
2 tsp. chili powder
1 tsp. black pepper
1 tsp. white pepper
1/2 tsp. soy sauce
2 Tbsp. butter

Preparation

Combine all ingredients, except soy sauce and butter.
Simmer 10 minutes. Remove from heat and stir in soy sauce and butter. Serve warm or cold.