Email to Amy Onions: Barbecued Onions Source of Recipe LNRecipes List of Ingredients 2 tablespoons oil 2 large onions, sliced 1/2 cup barbecue sauce 1/4 cup beef or vegetable broth 1 tablespoon apple cider vinegar Instructions Heat the oil in a skillet. Add the onions and cook until soft. Add the remaining ingredients and simmer 20 minutes. Serve warm.