Picnic Baked Beans
["1 onion, chopped", "2 tsp. butter", "16 oz. red kidney beans", "16 oz. B&M baked beans", "1 c. catsup", "1 c. brown sugar", "1 Tbsp. vinegar", "1 tsp. mustard", "4 strips fried bacon, crumbled"]
["Saute onion in butter.", "Combine with remaining ingredients and mix well.", "Pour into large baking dish.", "Cover and bake at 350\u00b0 for 35 minutes or until hot.", "Yield:", "10 servings."]
["onion", "butter", "red kidney beans", "beans", "catsup", "brown sugar", "vinegar", "mustard", "bacon"]