Avery Island Barbecue Sauce

1. 1 of 3 Heat butter and olive oil in saucepan. Add onion, celery, green pepper and garlic; saute until tender, about 15 minutes.
2. 2 of 3 Stir in tomatoes with their liquid, sugar, tomato paste, vinegar, mustard, Worcestershire, lemon slices and bay leaf. Simmer, covered, stirring, 30 minutes, until thickened.
3. 3 of 3 Discard lemon and bay leaf. Puree sauce in processor or blender. Stir in Tabasco, salt, pepper. Serve warm. Refrigerate leftover several weeks.

For Grilled Burgers:

1. 1 of 1 Shape 1 pound ground beef into 4 patties. Grill or broil 10 minutes or until desired doneness; turn once; baste with 1/4 cup barbecue sauce last 5 minutes. Serve on toasted English muffins with lettuce, tomato, red onion. Makes 4 servings.