Warm up with this hearty Soupe 'A L'Oignon Au Gratin(French Onion Soup With Cheese) recipe. Made with onions, butter, sugar and salt. Easy step-by-step …
This Soupe 'A L'Oignon Au Gratin(French Onion Soup With Cheese) relies on simple, everyday ingredients such as medium onions, thinly sliced, butter or margarine, sugar and salt (optional). It comes together quickly and makes 4 servings, at about 1305 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