Delicious Reuben Soup Recipe tastes like a cozy deli sandwich in a bowl, with tangy sauerkraut, melty Swiss, and savory corned beef-style flavors all swirling in a creamy broth. This soup works perfectly for busy weeknights or casual weekends, since you can get it on the table in about 40 minutes from start to finish. I tested versions of this so many times that my neighbors started “checking on me” right around dinner.

Why Make This Delicious Reuben Soup Recipe at Home

This Delicious Reuben Soup Recipe gives you all the classic flavors in a spoonable, comforting way. You control the salt, the richness, and the toppings, so it tastes like your favorite deli order but feels lighter and more balanced.

Homemade Reuben soup also uses simple pantry ingredients and easy shortcuts. You can use leftover cooked beef, deli-style corned beef alternatives, or even ground beef, and the soup still tastes rich and satisfying.

“This Delicious Reuben Soup Recipe tastes like a cozy deli lunch in a bowl and hits every comfort-food craving I have. ★★★★★”

Ingredients You Need

Here is everything you need for this Delicious Reuben Soup Recipe. I include some shortcuts and swaps so you can use what you already have.

Main ingredients

2 tablespoons butter or neutral oil
1 medium yellow onion, finely chopped
2 ribs celery, finely chopped
2 cloves garlic, minced
2 cups cooked beef, chopped small
- Use leftover roast beef, corned beef-style brisket, or a lean deli-style beef.
1 1/2 cups sauerkraut, drained and lightly squeezed
- Use bagged refrigerated sauerkraut for the brightest flavor. Jarred works fine too.
3 tablespoons all-purpose flour
4 cups low sodium beef broth
- Use chicken broth if you prefer a milder flavor.
1 cup water, as needed to thin
1 cup half-and-half or light cream
- Use whole milk for a lighter version or heavy cream for extra richness.
1/3 cup ketchup
1/4 cup mayonnaise
2 tablespoons sweet pickle relish
1 tablespoon prepared yellow or Dijon mustard
1 teaspoon Worcestershire sauce
1 teaspoon smoked paprika
1 teaspoon onion powder
1/2 teaspoon garlic powder
1/2 teaspoon caraway seeds
- This gives that classic rye bread flavor.
Salt and black pepper to taste

Cheese and topping ingredients

1 1/2 cups shredded Swiss cheese
- I like to use a block and shred it fresh so it melts smoothly.
1 cup shredded mozzarella or provolone
- This helps the cheese stretch and melt nicely.
4 slices rye bread, cubed
- Use any rye you like, with or without seeds.
1 tablespoon olive oil
Pinch of salt and garlic powder for the croutons

Pantry shortcuts and notes

Use pre-shredded cheese if you feel short on time, but stir it in slowly so it melts evenly.
Use bagged coleslaw mix as a shortcut if you want to bulk up the veggies; sauté it with the onion and celery.
Use bottled Thousand Island dressing instead of the ketchup, mayo, relish, and mustard combo if you want a shortcut. Add it slowly and taste as you go.

Equipment list

Large heavy pot or Dutch oven
Cutting board and sharp knife
Wooden spoon or silicone spatula
Measuring cups and spoons
Ladle
Baking sheet for croutons
Small skillet if you toast croutons on the stove

Tips & Mistakes

Stir the flour into the veggies fully so it coats everything and cooks for at least 1 minute to avoid a raw flour taste.
Add broth slowly while you stir so the soup stays smooth and creamy.
Taste the sauerkraut before you add it and rinse it briefly if it tastes very salty or sharp.
Chop the beef into small, bite-size pieces so every spoonful feels balanced.
Add cheese at the end over low heat so it melts gently and does not clump.
Keep the heat at a gentle simmer so the dairy does not curdle.
Season at the very end, since sauerkraut, cheese, and broth already bring plenty of salt.
Toast the rye croutons until crisp so they hold up in the soup and do not turn soggy right away.
Store leftovers without croutons on top so the texture stays pleasant.
Reheat slowly and stir often so the creamy base stays silky.

How to Make Delicious Reuben Soup Recipe

Step 1: Toast the rye croutons

Preheat your oven to 375°F.
Toss the rye bread cubes with olive oil, a pinch of salt, and a little garlic powder.
Spread the cubes on a baking sheet in a single layer.
Bake for 8 to 10 minutes, toss once, and bake until golden and crisp, then set aside.

Step 2: Sauté the aromatics

Heat the butter or oil in a large pot over medium heat.
Add the chopped onion and celery and cook for 5 to 7 minutes until they turn soft and lightly golden.
Stir in the garlic and cook for 30 seconds until it smells fragrant.

Step 3: Add beef and sauerkraut

Add the chopped cooked beef to the pot and stir so it warms through.
Add the drained sauerkraut and stir again so everything mixes evenly.
Cook for 2 to 3 minutes so the flavors start to mingle.

Step 4: Build the creamy base

Sprinkle the flour over the mixture and stir until it coats everything.
Cook the flour for 1 to 2 minutes while you stir so it loses the raw taste.
Slowly pour in the beef broth while you stir constantly to keep the soup smooth.
Add a splash of water if the mixture looks too thick.

Step 5: Add seasonings and simmer

Stir in the smoked paprika, onion powder, garlic powder, caraway seeds, and Worcestershire sauce.
Bring the soup to a gentle simmer and lower the heat.
Let it simmer for 10 to 15 minutes, stirring occasionally, until it thickens slightly and the flavors deepen.

Step 6: Stir in the “dressing” flavors

In a small bowl, whisk together the ketchup, mayonnaise, relish, and mustard.
Stir this mixture into the soup until it blends fully.
Taste and adjust with more mustard or relish if you want more tang or sweetness.

Step 7: Add dairy and cheese

Lower the heat to low so the soup barely simmers.
Stir in the half-and-half or cream slowly.
Add the shredded Swiss and mozzarella in small handfuls, stirring after each addition until the cheese melts.
Taste and season with salt and black pepper as needed.

Step 8: Serve

Ladle the Delicious Reuben Soup Recipe into warm bowls.
Top each bowl with a handful of rye croutons.
Sprinkle a little extra shredded Swiss or a pinch of caraway seeds on top if you like.
Serve hot and enjoy that deli-style comfort in every spoonful.

Variations I've Tried

I tested a lighter version with turkey instead of beef and it still tasted rich and satisfying. I just used turkey broth and leaned a bit heavier on the smoked paprika for depth.

I also tried a vegetarian version with sautéed mushrooms and white beans instead of meat. The beans gave the soup body, and the mushrooms added a savory flavor that paired nicely with the sauerkraut and Swiss.

For a lower dairy version, I used evaporated milk and a smaller amount of cheese. The soup still tasted creamy but felt a bit lighter, which worked nicely for lunches.

How to Serve Delicious Reuben Soup Recipe

Serve this Delicious Reuben Soup Recipe hot with extra rye croutons on the side so everyone can add more crunch. I like to add a small dollop of extra ketchup-mayo mixture on top and swirl it in for a pretty finish.

Pair the soup with a simple green salad, sliced cucumbers, or carrot sticks to keep the meal balanced. Kids usually love the cheesy, tangy flavor, so this soup works nicely as a family-friendly dinner with some fruit on the side.

How to store

Store leftover Delicious Reuben Soup Recipe in an airtight container in the fridge for up to 3 days.
Keep the rye croutons in a separate container at room temperature for up to 2 days so they stay crisp.
Freeze the soup in freezer-safe containers for up to 2 months; leave a little space at the top for expansion.
Reheat gently on the stove over low to medium heat, stir often, and add a splash of broth or milk if it looks too thick.
You can also reheat single portions in the microwave in short bursts, stirring between each burst so the soup heats evenly.