This slow cooker 4-ingredient creamy Reuben soup is exactly the kind of dish my sister hauls to church potlucks and family card nights. It’s a cozy twist on the classic Reuben sandwich we grew up eating in small-town diners across the Midwest—only here, all those familiar flavors melt together in a pale, rich, creamy broth. With just corned beef, sauerkraut, Swiss cheese, and a can of cream of celery soup doing the heavy lifting, it’s the kind of recipe you can toss together in minutes and let bubble away while you go about your day. By the time you lift the lid, the soup is velvety, the pink chunks of corned beef are tender, and the sauerkraut has mellowed into that tangy warmth that keeps folks going back for “just one more ladle.”
Ladle this creamy Reuben soup into warm bowls and serve it with thick slices of buttered rye or pumpernickel bread for dipping, so you catch every bit of that cheesy, tangy broth. A simple green salad with a sharp vinaigrette balances the richness nicely, or you can set out a plate of dill pickles and carrot sticks the way my mother always did when soup was the main event. If you’re feeding a crowd, keep the slow cooker on warm at the potluck table, and tuck a small jar of Thousand Island dressing nearby for folks who like to drizzle a little over the top—just like the sandwich, only in spoonable form.
Slow Cooker Creamy Reuben SoupServings: 6
Ingredients
1 1/2 pounds cooked corned beef, cut into small bite-size chunks
1 (32-ounce) jar sauerkraut, drained but not rinsed
1 (26-ounce) family-size can condensed cream of celery soup
3 cups shredded Swiss cheese, divided (2 cups for cooking, 1 cup for topping)
Directions
Lightly grease the inside of a 4- to 6-quart slow cooker so the cheesy soup doesn’t stick too much around the edges.
Add the drained sauerkraut to the slow cooker and spread it out in an even layer so the strands are fairly loose and not clumped together.
Scatter the chunks of cooked corned beef evenly over the sauerkraut, tucking some pieces down so every ladle later will have both meat and kraut.
Pour the condensed cream of celery soup over the top. Do not dilute it with water or milk; you want it thick and rich so it turns into a creamy, pale broth as it heats.
Sprinkle 2 cups of the shredded Swiss cheese over everything, pressing it down lightly so some of the cheese sinks into the soup base.
Cover the slow cooker with the lid and cook on LOW for 4 to 5 hours, or on HIGH for about 2 to 3 hours, until the soup is hot and bubbling around the edges and the cheese has fully melted into the broth.
Once the soup is hot and creamy, give it a gentle stir from the bottom up to mix the sauerkraut, corned beef, and melted Swiss into a smooth, speckled, pale broth. Taste and, if needed, adjust the seasoning very lightly with salt and pepper, keeping in mind the corned beef and sauerkraut are already salty.
Sprinkle the remaining 1 cup of shredded Swiss cheese over the surface of the soup, cover, and let it sit on LOW or WARM for another 10 to 15 minutes, just until the cheese on top is melted and slightly bubbly, forming creamy swirls on the surface.
Stir lightly to marble the melted cheese through the top layer, then ladle the hot, creamy Reuben soup straight from the slow cooker into bowls. Serve warm, allowing folks to scoop down to the bottom for plenty of pink corned beef chunks and sauerkraut strands in every serving.
Variations & Tips
For a milder sauerkraut flavor, you can rinse the kraut briefly under cold water before draining, though I like to leave it as-is for that classic Reuben tang. If your corned beef is very lean or a bit dry, stir in a splash of whole milk or half-and-half at the end of cooking to loosen the broth slightly. To echo the sandwich even more, serve the soup with toasted rye croutons: cube rye bread, toss with a little butter, and toast in the oven until crisp, then float them on top of each bowl. A small drizzle of Thousand Island or Russian dressing over individual servings adds sweetness and color without changing the basic four-ingredient pot. You can also swap part of the Swiss for baby Swiss or a mild provolone if that’s what you have on hand, but keep most of it Swiss to hold onto that classic flavor. Leftovers reheat well on the stove or in the microwave—warm gently and stir often so the cheese doesn’t separate, and if it gets too thick, add a spoonful or two of milk to bring it back to that cozy, creamy consistency.
