1 extra lg. baked beans
1 lb. bacon
1 lg. onion, chopped
2 tbsp. mustard
2 tbsp. bacon grease
1 c. brown sugar

Brown bacon until cooked, but not crisp. Drain fat, reserving to tablespoons. Put bacon into crock pot. Add onion, mustard, brown sugar and reserved bacon grease. Stir together. Cook in crock pot on high until boiling, then turn down to low for up to three hours, stir occasionally. The longer the beans cook the better.