Cream of Sauerkraut Soup Recipe: Fermented Depth With Creamy Velouté Magic

This cream of sauerkraut soup transforms tangy fermented cabbage into a velvety, comforting dish that balances bold flavors with creamy richness. The secret lies in blending sautéed onions, garlic, and sauerkraut until smooth, then enriching it with a velouté made from butter, flour, and milk for that signature luscious texture.

I developed this recipe after realizing how often sauerkraut gets overlooked—until you turn it into something this luxurious.

The process is straightforward but requires patience: first, build a flavorful base by cooking onions and garlic until golden, then stir in the sauerkraut to release its fermented depth. A simple roux thickens the broth before blending, while cream or milk adds that velvety finish.

The result is a soup that’s both hearty and refined, perfect for chilly evenings when you crave something substantial yet elegant.

What sets this apart is the harmony of flavors—tangy, earthy sauerkraut mellowed by creamy smoothness, with just enough acidity to brighten every spoonful. The soup’s velvety texture makes it ideal for pairing with crusty bread or a sprinkle of fresh herbs.

Trust me, this isn’t your grandmother’s sauerkraut dish—it’s a modern twist that still feels nostalgically comforting.

Ready in about 45 minutes, this recipe delivers restaurant-quality results with minimal effort. The key is balancing the sauerkraut’s acidity with the creaminess, ensuring each bite is rich without being overpowering.

Serve it as a starter or a main course, and watch how it transforms a simple ingredient into something truly special.

Ingredients for cream of sauerkraut soup

Fermented cabbage meets velvety richness in this luxurious soup—simple ingredients, restaurant-worthy results.

The sauerkraut is the star, so pick a high-quality jarred brand like Bubbies or Maslow's—avoid the watery, overly sour stuff. Fresh thyme from Whole Foods or your local market adds brightness, but dried works in a pinch. The butter matters too—use European-style unsalted like Plugrá for maximum flavor. For the roux, cook the flour and butter until golden brown (not browned) to avoid bitterness—this is what gives the soup that velvety texture. If your sauerkraut is extremely sour, rinse it quickly under cold water to mellow the acidity without losing flavor.

No heavy cream? Half-and-half plus a splash of milk works, though the texture won't be quite as luxurious. Short on thyme? Fresh parsley or tarragon adds a different but lovely dimension. The apple cider vinegar might seem odd, but it's key to balancing the sauerkraut's tang—if you're out, a splash of lemon juice does the trick. For a vegetarian version, swap the chicken broth for vegetable broth plus a bouillon cube. The bread is optional but essential for soaking up that creamy goodness—baguette or sourdough work best, toasted lightly for extra crunch.

This soup tastes even better the next day as flavors meld. Store in an airtight container in the fridge for up to 5 days, or freeze portions for 3 months. Reheat gently on the stove with a splash of milk or broth to restore creaminess. I always make a double batch—it disappears fast, especially when paired with a crisp white wine like Sauvignon Blanc. Garnish with extra thyme or a drizzle of cream right before serving for that final touch of elegance.

Step-by-step instructions for cream of sauerkraut soup

Here's how to transform tangy sauerkraut into a velvety, comforting soup with layers of flavor.

Melt the 4 tbsp unsalted butter in a large Dutch oven over medium heat. Add the 1 whole yellow onion and cook for 8-10 minutes until softened and translucent. Stir in the 3 cloves minced garlic and cook for 30 seconds until fragrant - this prevents bitter flavors.

Lower heat to medium-low and gradually whisk in the ¼ cup all-purpose flour, stirring constantly for 2-3 minutes until the mixture reaches a golden brown color. This creates the velouté roux foundation that will thicken your soup beautifully. If it darkens too quickly, reduce heat slightly - patience here prevents bitter notes.

Add the 1 lb drained sauerkraut and stir to coat completely in the roux. Cook for 5 minutes until the sauerkraut softens slightly and releases its tangy juices. Pour in the 3 cups chicken broth and bring to a gentle simmer, stirring occasionally for 15 minutes until the mixture reduces slightly and flavors meld.

Here's where the magic happens: add the 1 tbsp apple cider vinegar and 1 tsp salt. The vinegar balances the sauerkraut's acidity while the salt enhances all flavors. Taste and adjust seasoning - you want the base to be rich but not overpowering. The mixture should coat the back of a spoon with a velvety texture.

Temper the dairy by gradually whisking in the 2 cups whole milk and ½ cup heavy cream in a thin stream while stirring constantly. Return the mixture to medium-low heat and simmer gently for 10-12 minutes, stirring occasionally, until the soup thickens to your desired consistency. You're aiming for a silky, coat-the-back-of-a-spoon texture.

Stir in the ¼ tsp fresh thyme leaves and ¼ tsp freshly cracked black peppercorns just before removing from heat. These delicate flavors need to be added last to preserve their freshness. The soup should be smooth with just a hint of tang from the sauerkraut peeking through.

Taste and adjust seasoning one final time, adding more salt if needed. The soup should be rich but not salty, with a perfect balance between the creamy velouté and fermented sauerkraut flavors. For extra depth, you can blend about half the soup for a smoother texture, then stir it back in.

Ladle the soup into bowls and serve immediately with 8 slices crusty bread on the side. The contrast of the warm, creamy soup against the crisp bread creates the perfect textural experience. Each spoonful should deliver that velvety creaminess with just a hint of tangy sauerkraut complexity.

Dietary considerations for cream of sauerkraut soup

Gluten-Free Adaptation

Replace the all-purpose flour in the roux with ½ cup gluten-free all-purpose flour blend like Bob's Red Mill 1:1. Cook it exactly as directed—golden brown—but watch closely as gluten-free flours can burn faster.

For extra thickness, add 1 tbsp cornstarch mixed with 1 tbsp cold water after the roux forms. The texture will still be velvety, though slightly lighter than traditional versions. 🌾

Dairy-Free Version

Swap the butter, milk, and cream for coconut milk and olive oil. Use 4 tbsp olive oil instead of butter, then blend 2 cups full-fat coconut milk with ½ cup unsweetened almond milk for the creamy base.

The flavor stays rich, though the texture becomes slightly lighter. Add a pinch of nutmeg to enhance the velvety quality. For the roux, use gluten-free flour if avoiding gluten too. 🥥

Low-Carb Options

Cut carbs by omitting the bread entirely and using cauliflower rice as a side. For the soup, reduce the sauerkraut to ½ lb and add 1 cup finely diced mushrooms to bulk up the base.

Replace the flour with 2 tbsp psyllium husk powder mixed with ¼ cup water to create a thickener. This keeps the soup hearty while slashing carbs dramatically. 🥦

Vegetarian Swaps

Use vegetable broth instead of chicken broth, and add 1 tsp nutritional yeast for a cheesy depth. For extra umami, stir in 1 tbsp soy sauce or 1 tsp miso paste when developing the sauerkraut flavor. The soup remains rich and satisfying without any animal products. 🌱

Protein Boost

Add ½ cup cooked chickpeas or ½ lb shredded rotisserie chicken to the finished soup for extra protein. For a meaty texture, stir in ½ cup crumbled tempeh during the final simmer. These additions keep the soup hearty while adding satisfying substance to each bowl. 💪

Allergen-Friendly Notes

For nut allergies, use oat milk instead of almond milk in the dairy-free version. If avoiding gluten and dairy, opt for certified gluten-free oats and coconut-based thickeners. Always check labels—some sauerkraut brands may contain trace gluten from processing. When in doubt, choose Bubbies brand for naturally gluten-free sauerkraut. 🛡️

Frequently asked questions