Warm up with this hearty Basic Onion Soup recipe. Made with onions, olive oil, water and bouillon cubes. Easy step-by-step instructions included.
This Basic Onion Soup relies on simple, everyday ingredients such as large onions, olive oil, water or stock of choice and bread toasted. It comes together quickly and makes 4 servings, at about 389 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