1 cup Prepared Yellow Mustard
1/2 cup Sugar
1/4 cup Light brown sugar
3/4 cup Cider vinegar
1/4 cup Water
2 tbsp Chili powder
1 tsp Black pepper
1 tsp White pepper
1/4 tsp Cayenne pepper
1/2 tsp Soy sauce
2 tbsp Butter
1 tbsp Liquid smoke, hickory flavoring
Mix all ingredients except soy, butter, and smoke. Simmer 30 minutes.
Stir in remaining ingredients and simmer for 10 more minutes.