Warm up with this hearty Caramelized Onion Soup - Crock Pot recipe. Made with onions, unsalted butter, extra virgin olive oil and kosher salt. Easy step…
This Caramelized Onion Soup - Crock Pot relies on simple, everyday ingredients such as onions, peeled and sliced, unsalted butter, melted, extra virgin olive oil and kosher salt. It comes together quickly and makes 4 servings, at about 933 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