Ernie'S Bbq Sauce - cooking recipe

Ingredients

1/4 cup butter
1 tablespoon oil
1 1/2 cups onions, chopped
3 garlic cloves, minced
1 teaspoon salt
1 teaspoon black pepper
1 tablespoon mustard powder
1 tablespoon paprika
1 teaspoon cumin
1 teaspoon cayenne pepper
2 cups ketchup
1/4 cup dark brown sugar
1/4 cup apple cider vinegar
2 cups water

Preparation

Saute onion and garlic in butter and oil until tender. Add all other ingredients and simmer 2 hours or until desired thickness.