Melt butter in a small saucepan over medium heat; add onion, and sauté 4 to 5 minutes or until tender. Stir in chili sauce, next 3 ingredients, and 1/3 cup water; bring to a boil. Reduce heat to low, and simmer 5 minutes. Store in refrigerator up to 1 week.
This sauce is amazing! So simple too.
This recipe is great. I used a garlic chili sauce and add a shot of tequila.