Name: Creamy Keto Reuben Soup: A Cozy Low-Carb Delight
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Ingredients: 2 tablespoons unsalted butter; 1 medium onion, finely chopped; 2 stalks celery, chopped; 2 cloves garlic, minced; 4 cups low-sodium beef broth; 1 cup heavy whipping cream (can replace with coconut milk for dairy-free); 1 cup sauerkraut, well-drained; 8 ounces chopped corned beef deli meat (can substitute with shredded chicken or turkey); 1 cup shredded Swiss cheese (optional topping)

As the sun sets and the chill of evening begins to creep in, I find myself reaching for a warm bowl of comfort. Luckily, that desire led me to create this Cheesy Keto Reuben Soup. With all the bold flavors of a classic Reuben sandwich—but without the carbs—this recipe is a cozy hug in a bowl that you can whip up in just 30 minutes. Imagine rich Swiss cheese melting seamlessly into creamy broth, surrounded by tender pieces of savory corned beef and the tangy crunch of sauerkraut. Not only is this soup low-carb, making it perfect for any keto diet, but it’s also an effortless solution for busy weeknights when you want something hearty without the hassle. Are you ready to dive into a bowl of comfort? Let’s get cooking!

Why is this Keto Reuben Soup amazing?

Quick preparation: In just 30 minutes, you can enjoy a comforting meal that satisfies your cravings and fits perfectly into your busy schedule.

Bold flavors: The rich combination of Swiss cheese, savory corned beef, and tangy sauerkraut captures the essence of a classic Reuben without the carbs, ensuring every spoonful is a delight.

Customizable: Whether you prefer a different protein or want to spice things up with pepper jack cheese, this recipe is versatile, allowing you to make it your own.

Health benefits: With only 5g of net carbs per serving, this Keto Reuben Soup is a guilt-free indulgence that supports your dietary goals, packed with gut-friendly probiotics from the sauerkraut.

Crowd-pleaser: Serve it at your next gathering or family dinner, and watch as everyone devours this hearty soup, proving that healthy food can also be delicious.

For another warm and comforting dish, check out my Homemade Chicken Soup for a delightful twist on a classic!

Keto Reuben Soup Ingredients

For the Base

Butter – Adds richness and serves as the base for sautéing. Use unsalted for better control over seasoning.
Onion – Provides savory depth. Chopped finely for uniform cooking.
Celery – Adds texture and freshness. Chopped to match onion size for even cooking.
Garlic – Enhances the soup’s flavor profile with a robust aroma. Minced for quick release of flavor.
Beef Broth – Forms the soup’s savory foundation. Opt for low-sodium for better control over saltiness.
Heavy Whipping Cream – Creates a rich, creamy texture. Can replace with coconut milk for a dairy-free version.

For the Main Ingredients

Sauerkraut – Infuses a tangy bite and probiotics. Ensure it’s well-drained to prevent excess liquid.
Chopped Corned Beef Deli Meat – Main protein source, adding heartiness. Can substitute with shredded chicken or turkey for a different twist.
Shredded Swiss Cheese – Provides creaminess and a mild, nutty flavor. Optional toppings for serving.

This delicious Keto Reuben Soup is not just a meal—it’s a cozy experience waiting to happen!

Step‑by‑Step Instructions for Keto Reuben Soup

Step 1: Sauté the Base Ingredients
In a large pot, melt 2 tablespoons of unsalted butter over medium heat until bubbly. Add finely chopped onion and celery, stirring them together for about 5–7 minutes, until the vegetables are tender and translucent. The onions should become slightly golden, releasing their savory aroma as they create a flavorful base for your Keto Reuben Soup.

Step 2: Add Garlic for Flavor
Next, stir in 2 minced garlic cloves and cook for an additional 30 seconds, allowing the garlic to infuse its robust aroma into the soup. Keep stirring to prevent the garlic from burning and becoming bitter, as this step is crucial for enhancing the overall flavor profile of your creamy soup.

Step 3: Pour in Liquids
Pour in 4 cups of low-sodium beef broth and 1 cup of heavy whipping cream into the pot, stirring well to combine everything. Bring the mixture to a gentle simmer over medium-high heat, ensuring the ingredients are well incorporated and the cream begins to blend with the broth, creating a luscious texture for your Keto Reuben Soup.

Step 4: Mix in Sauerkraut and Corned Beef
Once simmering, drain and add 1 cup of sauerkraut and 8 ounces of chopped corned beef. Stir to combine, allowing the tangy bite of the sauerkraut and the hearty pieces of corned beef to meld into the creamy base. Season with salt and pepper to taste, adjusting according to your preference for a well-rounded flavor.

Step 5: Simmer to Meld Flavors
Cover the pot and reduce the heat to low, allowing the soup to simmer for about 20 minutes. This time ensures that all the flavors come together beautifully, with the ingredients softening and the aroma enveloping your kitchen, making it almost irresistible to wait to serve your Keto Reuben Soup.

Step 6: Serve and Enjoy
Ladle the steaming Keto Reuben Soup into bowls and top each serving with a sprinkle of shredded Swiss cheese. Serve hot and watch the cheese melt, creating a comforting, rich finish. Pair it with pork rinds or a crisp salad for a complete meal that warms the soul on any day.

Make Ahead Options

Busy home cooks will love knowing that this Cheesy Keto Reuben Soup can be prepped in advance to save time during the week! You can prepare the base of the soup (sautéed vegetables and liquids) up to 24 hours ahead. Simply cook the onions, celery, garlic, beef broth, and cream, then cool and refrigerate the mixture. When you’re ready to enjoy, just heat the soup on the stovetop, add the drained sauerkraut and chopped corned beef, and simmer for about 10 minutes. This ensures all flavors meld beautifully while keeping the soup just as delicious! You can also store leftovers in the fridge for up to 3 days, making it a perfect option for meal prep enthusiasts.

Expert Tips for Keto Reuben Soup

Perfect Consistency: Add the heavy whipping cream after the broth comes to a simmer; this ensures a creamy, smooth texture without curdling.
Flavor Boost: Sauté onions and celery until caramelized for added sweetness and depth. A touch of browning brings out their natural flavors beautifully.
Sauerkraut Care: Always drain sauerkraut well to avoid excess liquid, which can dilute the lovely creaminess of your Keto Reuben Soup.
Protein Options: If you want a lighter alternative, substitute corned beef with shredded chicken or turkey for equally delicious variations that won’t sacrifice flavor.
Storage Tips: This soup reheats beautifully; store leftovers in an airtight container for up to a week, warming on the stove for the best texture restoration.

What to Serve with Cheesy Keto Reuben Soup

There’s nothing quite like pairing a warm, creamy bowl of comfort with delightful sides to elevate your meal experience.

Pork Rinds: Adds a satisfying crunch that mirrors the texture of crispy bread, perfect for dipping into the rich soup.
Cheese Crisps: These low-carb snacks offer a cheesy flavor and crispy texture, enchanting any cheese lover while keeping it keto-friendly.
Pumpkin Breadsticks: Slightly sweet with a hint of spice, these warm breadsticks gently contrast the savory notes of the soup.
Crisp Side Salad: A low-carb chicken cobb salad adds freshness and crunch, complementing the hearty soup with layers of flavor.
Pickles or Pickled Vegetables: Their tangy bite beautifully complements the creamy soup, enhancing the classic Reuben flavor profile.
Sparkling Water with Lemon: This refreshing drink cleanses the palate and adds a zesty touch, making it a delightful pairing for the rich soup.

Keto Reuben Soup Variations & Substitutions

Unleash your creativity by personalizing this delicious soup to fit your taste buds and dietary needs.

Dairy-Free: Substitute heavy cream with coconut milk to keep it rich and creamy while staying dairy-free.
Protein Swap: Switch chopped corned beef for shredded chicken or turkey if you’re in the mood for a lighter version.
Cheese Choices: Experiment with different cheeses like sharp cheddar or spicy pepper jack to elevate the flavor profile.
Spice it Up: Add a pinch of paprika or cayenne pepper for a delightful kick and warmth that complements the tang of the sauerkraut.
Herb Infusion: Fresh herbs like dill or thyme can be stirred in right before serving for an aromatic twist.
Vegetarian: Remove meat and substitute with mushrooms to maintain a satisfying texture while making this recipe vegetarian-friendly.
Additional Crunch: Top with crispy onions or bacon bits right before serving for an extra layer of flavor and texture.
Hearty Veggies: Add chopped kale or spinach near the end of cooking for a nutrient boost while keeping the soup vibrant.

Feel inspired? You might also enjoy a warm bowl of my Homemade Chicken Soup that brings comfort to any table!

How to Store and Freeze Keto Reuben Soup

Fridge: Store leftovers in an airtight container for up to 5 days, ensuring that you allow the soup to cool completely before sealing.

Freezer: This Keto Reuben Soup can be frozen for up to 3 months. Let it cool, then transfer to freezer-safe bags or containers, leaving space for expansion.

Reheating: For best results, reheat on the stove over low heat, stirring occasionally until warmed through. Avoid boiling to maintain the creamy texture.

Make-Ahead Tips: Prepare the soup in advance and store it sealed in the fridge for a quick meal later in the week, perfect for busy days ahead.

Keto Reuben Soup Recipe FAQs

How do I choose the right sauerkraut for my Keto Reuben Soup?
Absolutely! When selecting sauerkraut, look for brands that have a minimal ingredient list, ideally with just cabbage and salt. Avoid those with added sugars or preservatives. It’s essential to drain it well before adding to the soup to prevent excess liquid, which keeps your soup creamy and thick.

How long can I store leftovers of Keto Reuben Soup?
You can store leftovers in an airtight container in the fridge for up to 5 days. Just make sure to let it cool completely before sealing to maintain its wonderful flavors. I often do this to save time on busy weeknights.

Can I freeze Keto Reuben Soup for later?
Yes! This Keto Reuben Soup can be frozen for up to 3 months. After cooking, allow the soup to cool, then transfer it to freezer-safe bags or containers. Remember to leave some space for expansion as it freezes. When you’re ready to enjoy it, thaw in the fridge overnight before reheating.

What should I do if my soup curdles after adding cream?
Very! If you notice curdling, it might be due to boiling the soup after adding the cream. To avoid this in the future, always add cream when the soup is simmering gently, not boiling. If it does curdle, you can blend the soup until smooth with an immersion blender for a creamy finish.

Are there any dietary considerations I should keep in mind?
For sure! This soup contains dairy from the heavy cream and Swiss cheese, so if you’re lactose intolerant or following a dairy-free diet, substituting the cream with coconut milk works beautifully. Always check labels for any allergies to processed meats like corned beef, or opt for chicken or turkey as alternatives.

What can I pair with my Keto Reuben Soup for a complete meal?
I recommend pairing this delightful soup with crunchy pork rinds, cheese crisps, or even some homemade low-carb pumpkin breadsticks. Adding a side salad, like a refreshing chicken cobb, complements the flavors perfectly and makes for a hearty, satisfying meal!