Sweet & Sour Baked Beans

Originally from one of those oh-so-‘70s Sunset cookbooks, modified to include beans people actually like (Butter beans? Out! Lima beans? No way!). All in one pan. Implements Dutch oven with lidKnifeCutting boardMeasuring cup½ teaspoonColanderLarge spoonBowlPaper towels Ingredients 8 oz.-1 lb. bacon2 large onions, halved and sliced1 cup firmly packed brown sugar1½ teaspoons dry mustard/mustard powder½…