1/2 lb. bacon, diced
1 med. onion, diced
1/2 c. ketchup
1/2 c. brown sugar
1 tbsp. cider vinegar
1 tsp. dry mustard
2 cans pork & beans
1 can kidney beans, drained
1 can butter beans, drained
Several dashes of liquid smoke

Fry onion and bacon. Drain off 1/2 of the grease. Add ketchup, brown sugar, vinegar, mustard and liquid smoke. Combine beans in casserole and pour mixture over. Stir. Bake at 350 degrees for 1 1/2 hours or until hot and bubbly.