In a large non-reactive saucepan, combine the cooled coffee, tomato paste, water, mustard, horseradish, brown sugar, Worcestershire sauce, butter, pepper, garlic powder, salt and cayenne pepper.
8 oz. Melitta® Colombian Coffee, 12 oz. tomato paste, 1/2 cup water, 1/2 cup yellow mustard, 1/4 cup dark brown sugar, 1/3 cup Worcestershire sauce, 1 tbsp. prepared horseradish, 1 tbsp. butter, 2 tsp. ground black pepper, 1 tsp. garlic powder, 1/2 tsp. salt, 1/4 tsp. cayenne pepper