Warm up with this hearty Mashed Potato Soup recipe. Made with baking potatoes, onion, celery and butter. Easy step-by-step instructions included.
This Mashed Potato Soup relies on simple, everyday ingredients such as medium baking potatoes, medium onion, chopped, celery ribs, chopped and butter. It comes together quickly and makes 4 servings, at about 551 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