Warm up with this hearty Onion Soup Gratinee recipe. Made with olive oil, yellow onions, unsalted butter and clove garlic. Easy step-by-step instruction…
This Onion Soup Gratinee relies on simple, everyday ingredients such as olive oil, unsalted butter, garlic, thinly sliced and sprigs fresh thyme. It comes together quickly and makes 4 servings, at about 572 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