Slow Cooker Creamy Reuben Soup: A Comforting Twist on the Classic Deli Sandwich

Slow Cooker Creamy Reuben Soup transforms the beloved Reuben sandwich into a warm, rich, and satisfying bowl of comfort food. Inspired by the famous combination of corned beef, Swiss cheese, sauerkraut, and creamy dressing, this soup brings all those classic flavors together in a slow-cooked meal that is easy to prepare and full of flavor.

With tender pieces of corned beef, creamy broth, tangy sauerkraut, melted cheese, and a hint of mustard, every spoonful delivers the familiar taste of a Reuben sandwich in a cozy soup form. The slow cooker allows the ingredients to gently simmer together, creating a deep flavor while requiring minimal effort.

This soup is perfect for cold days, family dinners, St. Patrick’s Day celebrations, or anyone who loves the traditional Reuben flavor but wants something warm and comforting.

What Makes Creamy Reuben Soup Special?

The classic Reuben sandwich is known for its perfect balance of flavors:

• Corned beef provides a salty, savory, meaty taste.
• Sauerkraut adds a bright, tangy contrast.
• Swiss cheese creates a creamy, nutty richness.
• Creamy broth replaces the sandwich bread while keeping the comforting texture.
• Caraway seeds add the traditional rye bread flavor.

This soup captures the heart of the original sandwich while creating a completely different experience.

Ingredients

For the Soup

• 2 cups cooked corned beef, chopped into small pieces
• 3 tablespoons butter
• 1 medium onion, finely diced
• 3 cloves garlic, minced
• 3 cups chicken broth
• 2 cups beef broth
• 3 cups potatoes, peeled and diced
• 2 cups sauerkraut, drained and roughly chopped
• 2 cups heavy cream
• 1 cup shredded Swiss cheese
• 1 cup cream cheese, softened
• 2 tablespoons all-purpose flour
• 1 tablespoon Dijon mustard
• 1 teaspoon Worcestershire sauce
• ½ teaspoon black pepper
• ½ teaspoon garlic powder
• ½ teaspoon onion powder
• ½ teaspoon paprika
• ½ teaspoon caraway seeds (optional but recommended)
• Salt to taste

For Garnishing

• Extra shredded Swiss cheese
• Chopped parsley
• Crispy rye bread pieces or croutons
• Extra chopped corned beef
• Fresh black pepper

Step 1: Prepare the Ingredients

Before starting, prepare all the ingredients.

Cut the corned beef into small bite-sized pieces. Dice the potatoes into similar-sized cubes so they cook evenly.

Drain the sauerkraut well. Too much liquid from the sauerkraut can make the soup overly sour or watery.

Chop the onion and mince the garlic.

Preparing everything beforehand makes assembling the slow cooker much easier.

Step 2: Sauté the Onion and Garlic

Although you can add everything directly to the slow cooker, sautéing the onion and garlic first creates a deeper and richer flavor.

Heat a skillet over medium heat.

Add the butter and allow it to melt.

Add the diced onion and cook for 3–4 minutes until soft and slightly translucent.

Add the garlic and cook for another 30 seconds until fragrant.

This step creates the aromatic base of the soup.

Step 3: Add the Ingredients to the Slow Cooker

Transfer the cooked onion and garlic into the slow cooker.

Add:

• Chopped corned beef
• Potatoes
• Sauerkraut
• Chicken broth
• Beef broth

Stir gently to combine everything.

The broth should cover most of the ingredients. If needed, add a little extra broth.

Step 4: Season the Soup

Add the seasonings:

• Black pepper
• Garlic powder
• Onion powder
• Paprika
• Caraway seeds
• Dijon mustard
• Worcestershire sauce

Stir well.

The mustard and Worcestershire sauce add depth and help recreate the bold flavor of a Reuben sandwich.

The caraway seeds provide the familiar rye bread taste that makes the soup feel authentic.

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