Bake this irresistible Unique Onion Gratin Soup Made with Sandwich Bread at home. Made with Onion, bacon, Butter and bread. Easy step-by-step instructio…
This Unique Onion Gratin Soup Made with Sandwich Bread relies on simple, everyday ingredients such as onion, half-strips of bacon, grams butter and sandwich bread. It comes together quickly and makes 4 servings, at about 419 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.
Updated Jun 30, 2026