As the chill of autumn settles in, there’s nothing quite like a steaming bowl of soup to warm the soul. Enter my Cheesy Keto Reuben Soup—a delightful twist on the beloved classic that captures all the savory goodness of a Reuben sandwich, but with none of the carbs. This comforting, low-carb delight seamlessly blends tender corned beef, tangy sauerkraut, and gooey Swiss cheese into a velvety concoction, making it the perfect quick meal for hectic weeknights. In just 30 minutes, you can savor the rich flavors and nourishing ingredients, all while sticking to your keto goals. Have you ever experienced a delicious dish that feels both indulgent and guilt-free? This soup might just be your new favorite cold-weather recipe!

Why Is Keto Reuben Soup a Must-Try?
Comforting Warmth: A steaming bowl of this soup is perfect for chilly evenings, wrapping you in its rich, creamy embrace.
Quick Preparation: In just 30 minutes, you can enjoy a wholesome, satisfying meal—ideal for busy weeknights when takeout isn’t an option.
Flavor-Packed Delights: With the mouthwatering combination of corned beef, tangy sauerkraut, and melty Swiss cheese, it’s a twist on the classic Reuben that satisfies every craving.
Keto-Friendly Enjoyment: At only 5 grams of net carbs per serving, you can indulge guilt-free while adhering to your dietary goals.
Family Favorite: This dish is guaranteed to please even non-keto eaters, making it perfect for family dinners or gathering with friends.
Pair it with a side of cheese crisps or a low-carb salad like chicken cobb for a complete experience that everyone will love!
Keto Reuben Soup Ingredients
• Dive into the heart of this delightful dish with the essentials you’ll need!
For the Soup Base
- Butter – Adds richness and flavor. Use unsalted butter for more control over the saltiness.
- Onion – Provides sweetness and aroma. Use yellow or sweet onion for a milder taste.
- Celery – Adds crunch and a subtle earthiness. No direct substitute; omit if necessary.
- Garlic – Enhances flavor with its robust profile. Fresh minced garlic is best.
- Beef Broth – Forms the soup base, contributing savory depth. Use low-sodium broth for better control over overall saltiness.
- Heavy Whipping Cream – Creates a creamy texture. Coconut milk can replace cream for a dairy-free option; it may impart a nutty flavor.
Key Ingredients for Flavor
- Sauerkraut – Adds tanginess and probiotics, ideal for a keto diet. Use more if substituting coconut milk to balance the flavor.
- Chopped Corned Beef Deli Meat – Provides protein and characteristic Reuben flavor. Leftover homemade corned beef or deli slices both work well.
- Shredded Swiss Cheese – Melts to top the soup, adding creaminess and flavor. Try Gruyère or provolone for a different taste.
- Salt and Pepper – Essential for seasoning to taste. Adjust according to preference.
Step‑by‑Step Instructions for Cheesy Keto Reuben Soup
Step 1: Melt the Butter
In a large pot set over medium heat, add 2 tablespoons of unsalted butter. Allow the butter to melt completely, swirling the pot gently. You’ll know it’s ready when it begins to foam and is fragrant, creating a rich foundation for your Cheesy Keto Reuben Soup.
Step 2: Sauté the Vegetables
Next, add one finely chopped onion and one diced celery stalk to the pot. Sauté these vegetables for about 5 minutes, stirring occasionally, until they become tender and translucent. This will infuse your soup with a lovely aroma and build its savory depth.
Step 3: Add Garlic
Stir in 2 cloves of minced garlic and cook for an additional 30 seconds. Keep an eye on the garlic so it doesn’t brown, as you want to enhance the flavor without any bitterness. The kitchen should now be filled with a delightful garlicky fragrance!
Step 4: Combine the Broth and Cream
Pour in 4 cups of beef broth and 1 cup of heavy whipping cream. Stir thoroughly to combine all the ingredients, ensuring your soup base is well mixed. You should see a smooth, creamy consistency forming—this is the heart of your Keto Reuben Soup.
Step 5: Mix in Sauerkraut and Corned Beef
Add 1 cup of drained sauerkraut and 2 cups of chopped corned beef deli meat into the pot. Season generously with salt and pepper to taste. Stir to evenly distribute the sauerkraut and corned beef, enhancing the soup’s hearty and tangy profile.
Step 6: Simmer
Cover the pot and let the soup simmer for 20 minutes over low heat. This allows the flavors to meld beautifully, creating a rich and comforting bowl of Cheesy Keto Reuben Soup. You’ll know it’s ready when the soup is hot and bubbling.
Step 7: Serve and Garnish
Ladle the hot soup into bowls, ensuring each serving has a good mix of ingredients. Top each bowl with a generous handful of shredded Swiss cheese, letting it melt slightly into the warm soup. Enjoy the comforting aroma and delicious flavors that bring your Keto Reuben Soup to life!

Keto Reuben Soup Variations
Feel free to make this delicious Keto Reuben Soup your own with these fun and tasty tweaks!
- Dairy-Free Option: Substitute heavy whipping cream with coconut milk for a dairy-free creaminess; it adds a subtle, nutty flavor.
- Protein Swap: Use shredded chicken or turkey instead of corned beef for a lighter protein option that’s just as satisfying. The flavor profile will still shine through!
- Low-Fat Twist: Replace heavy cream with low-fat cream or a milk alternative. Just be cautious with the cooking time to prevent curdling.
- Extra Crunch: Toss in some diced pickles or cucumber for an extra crunch that enhances the classic Reuben flavor. They add a fresh and zesty note to the rich soup.
- Spicy Kick: For a bit of heat, throw in some red pepper flakes or diced jalapeños. It’s a small addition that brings a delightful zing to every spoonful.
- Herb Infusion: Add fresh dill or caraway seeds while simmering for an incredible burst of flavor that complements the sauerkraut beautifully!
- Veggie Boost: Mix in some chopped spinach or kale towards the end of cooking; it ups the health factor with minimal effort and adds vibrant color.
- Whole30 Friendly: For a Whole30 twist, substitute the beef broth with homemade broth and omit the cream for a rich, satisfying, and compliant version of the soup.
Looking for more exciting soup ideas? Try out my comforting Cajun Potato Soup or a refreshing Coconut Lime Fish Soup. Enjoy exploring your culinary creativity!
Expert Tips for Keto Reuben Soup
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Perfect Butter Melting: Always melt butter slowly over medium heat. This prevents burning and creates a rich flavor base for your Keto Reuben Soup.
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Avoid Garlic Bitterness: Sauté garlic for just 30 seconds to avoid bitterness. Keep stirring for even cooking, enhancing the aromatics without any off-flavors.
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Consistent Mixing: Stir often when adding the broth and cream. This ensures a smooth texture and prevents any clumps in your creamy soup.
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Adjusting Thickness: If your soup thickens too much while cooling, simply add a bit more beef broth when reheating to achieve your desired consistency.
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Storing Leftovers: Store your Keto Reuben Soup in airtight containers for up to a week. Reheat on the stovetop for the best flavor and texture retention.
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Experiment with Flavors: Feel free to add your favorite spices or fresh herbs to the soup for a unique twist that complements the classic Reuben profile.
Make Ahead Options
These Cheesy Keto Reuben Soup preparations are perfect for busy home cooks looking to save time! You can chop the vegetables (onion, celery, and garlic) and store them together in an airtight container in the refrigerator for up to 3 days. Additionally, you can prepare the broth and cream mixture, refrigerating it in a separate container for up to 24 hours. When you’re ready to enjoy your soup, simply combine the prepped ingredients in a pot, add the sauerkraut and corned beef, and simmer for about 20 minutes until bubbling and heated through. This way, you’ll preserve the flavors and enjoy a delicious, hearty meal with minimal effort on a hectic weeknight!
How to Store and Freeze Keto Reuben Soup
Fridge: Store in an airtight container for up to 1 week. This helps the flavors develop even more, making your next bowl just as delicious!
Freezer: Freeze portions in airtight containers or heavy-duty freezer bags for up to 3 months. Thaw in the fridge overnight before reheating.
Reheating: For the best taste and texture, reheat on the stovetop, adding a splash of beef broth to restore creaminess.
Leftover Tips: If the soup thickens in the fridge, simply stir in a bit of broth when reheating to achieve your desired consistency without losing flavor.
What to Serve with Cheesy Keto Reuben Soup?
The perfect meal often calls for a complement that enhances every delicious bite of your warm, comforting soup.
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Cheese Crisps: These crunchy, savory bites offer a delightful contrast to the creamy soup, making every spoonful a satisfying experience.
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Pork Rinds: Their light and crispy texture add a fun crunch without the carbs, making them an ideal guilt-free sidekick for your soup.
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Pumpkin Breadsticks: These warm, golden breadsticks are both comforting and slightly sweet, balancing the tanginess of the soup wonderfully.
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Low-Carb Chicken Cobb Salad: A refreshing salad filled with flavors and textures that pairs perfectly with the hearty soup, creating a complete meal that’s good for the soul.
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Sour Cream: A dollop of sour cream can add a creamy tang that enhances the rich flavors of the soup while giving it a beautiful presentation.
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Herb-Infused Olive Oil Drizzle: A light drizzle over the soup just before serving can elevate its flavor profile, infusing it with aromatic warmth that captivates the senses.

Cheesy Keto Reuben Soup Recipe FAQs
How do I choose the best ingredients for my Keto Reuben Soup?
Absolutely! When selecting your ingredients, opt for fresh and high-quality options. Use unsalted butter for more control over seasoning, and choose sweet or yellow onions for a milder flavor. Ensure your sauerkraut is well-drained to avoid excess moisture in the soup, and go for high-quality corned beef for that authentic Reuben taste.
What is the best way to store leftover Keto Reuben Soup?
Very good question! Store your soup in an airtight container in the refrigerator for up to 1 week. Ensure it’s completely cooled before sealing to prevent condensation. To enhance flavors, let it sit for a day before serving again. For the best taste, reheat on the stovetop, adding a splash of beef broth if needed.
Can I freeze my Keto Reuben Soup? How do I do it?
Certainly! To freeze your soup, allow it to cool completely, then pour it into airtight containers or heavy-duty freezer bags, leaving some space for expansion. You can freeze it for up to 3 months. When you’re ready to enjoy, thaw it in the refrigerator overnight and reheat on the stovetop, adding a bit of broth if it’s too thick.
Why does my soup taste bland, and how can I fix it?
If your soup tastes bland, it may need a bit more seasoning. Start by adjusting with additional salt and pepper according to your taste. For a flavor boost, consider adding a splash of Worcestershire sauce, a bit of Dijon mustard, or some fresh herbs like dill or parsley. These enhancements can elevate the hearty flavor profile you’re aiming for!
Is this Keto Reuben Soup safe for my gluten-free diet?
Absolutely! This Cheesy Keto Reuben Soup is free from gluten, especially if you check that your corned beef and beef broth are also gluten-free. However, always read labels to ensure any packaged ingredients meet your dietary needs. If you’re unsure about your specific dietary restrictions, feel free to reach out with questions!

Savory Keto Reuben Soup That Warms Your Soul
Ingredients
Equipment
Method
- In a large pot set over medium heat, add butter and melt completely.
- Add the chopped onion and diced celery; sauté for 5 minutes until tender and translucent.
- Stir in the minced garlic and cook for an additional 30 seconds.
- Pour in beef broth and heavy whipping cream, stirring to combine.
- Mix in sauerkraut and corned beef, seasoning with salt and pepper.
- Cover the pot and let the soup simmer for 20 minutes over low heat.
- Ladle the hot soup into bowls and top with shredded Swiss cheese.
