Warm up with this hearty Roast Onion Soup recipe. Made with butter, garlic, onions and white wine. Easy step-by-step instructions included.
This Roast Onion Soup relies on simple, everyday ingredients such as butter, at room temperature, none whole garlic bulb, onions, quartered and white wine. It comes together quickly and makes 4 servings, at about 353 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