Avocado Cocktail
["1/2 c. ketchup", "1/4 c. tarragon vinegar", "1 Tbsp. Worcestershire sauce", "1/2 c. brown sugar", "1 Tbsp. butter"]
["Cook until it thickens; stir.", "Serve hot in avocados.", "Leave shell on avocados, serve 1/2 avocado on lettuce leaf."]
["ketchup", "tarragon vinegar", "Worcestershire sauce", "brown sugar", "butter"]