Name: Slow Cooker Sausage and Sauerkraut Recipe
Prep time: 15 min
Cook time: 2 h 30 min
Total time: 2 h 45 min
Cuisine: American
Ingredients: 1 1/2 – 2 pounds smoked kielbasa or sausage, cut into 1-inch pieces; 28-32 ounces sauerkraut (with juice); 1 small onion, diced; 1 large apple, diced; 2 tablespoons Dijon mustard; 2 teaspoons caraway or dill seeds; Salt & pepper to taste; 1 cup low-sodium chicken broth or water; 1 tablespoon oil

I’m so excited to share my Slow Cooker Sausage and Sauerkraut Recipe with you because it’s one of those comforting, satisfying meals that feels like a warm hug on a plate. The smoky kielbasa pairs beautifully with tangy sauerkraut and a hint of sweet apple, all slowly melded together into a tender, flavorful dish that’s perfect for any time you crave something hearty and homey. This recipe is incredibly straightforward, and it turns out with delicious results every time I make it.

Why You’ll Love This Slow Cooker Sausage and Sauerkraut Recipe

What really pulls me into this Slow Cooker Sausage and Sauerkraut Recipe is the balance of flavors. The smoked kielbasa brings a rich savory note while the sauerkraut adds a tangy brightness with that lovely fermented bite. Adding diced apple is my little trick to introduce a subtle sweetness that offsets the tang and smoke, creating a harmony that dances on your palate with every bite. I always look forward to that blend because it’s fresh, comforting, and deeply satisfying all at once.

Another part I adore is how effortless this recipe is. You just toss everything into the slow cooker, set it, and let it work its magic while you go about your day. It’s perfect for busy weeknights or when I want to entertain without getting stuck in the kitchen. Plus, it’s incredibly versatile myself—I’ve served it for casual family dinners and even at holiday gatherings where it’s always a crowd-pleaser. The slow cooking method allows the flavors to deepen beautifully, and it stands out because it tastes like you spent hours crafting a gourmet meal when really, the prep took just minutes.

Ingredients You’ll Need

The image shows four white bowls on a white marbled surface, each filled with different ingredients. The top left bowl has several layers of small, white, cubed onions with a soft texture. The top right bowl contains light yellow sauerkraut with a thin, shredded texture filling the bowl. The bottom left bowl has large, thick slices of smoked sausage with a smooth, reddish-brown outer skin and a pinkish interior. The bottom right bowl holds cubed apples with red skin edges and pale yellow flesh, stacked loosely. Each bowl's contents display a distinct color and texture that contrasts with the white bowls and the marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Each ingredient in this Slow Cooker Sausage and Sauerkraut Recipe is simple but essential, contributing layers of flavor and texture that make the dish sing. From the spicy sausage to the tangy sauerkraut, and that crisp sweetness from the apple, these components come together for a straightforward, wholesome meal.

1 1/2 – 2 pounds smoked kielbasa or sausage: This is the heart of the dish—choose a good quality smoked kielbasa for the best smoky flavor and texture.
28-32 ounces sauerkraut (with juice): The tangy sauerkraut adds acidity and moisture, bringing brightness and a slight crunch to the slow-cooked mix.
1 small onion, diced: Adds a subtle sweetness and depth when cooked down, balancing the tanginess of the sauerkraut.
1 large apple, diced: Introduces a touch of natural sweetness and freshness that beautifully complements the savory and sour elements.
2 tablespoons Dijon mustard: Gives the dish a mild kick and helps marry the flavors with a silky tang.
2 teaspoons caraway or dill seeds: These seeds bring a classic, warm, aromatic undertone that makes this dish distinctively comforting.
Salt & pepper to taste: To enhance and balance all the flavors.
1 cup low-sodium chicken broth or water (for Instant Pot only): Adds moisture and helps build the sauce in pressure cooking.
1 tablespoon oil (for Instant Pot only): Used for sautéing the sausage to deepen the flavor and texture.

Directions

Step 1: First, if using the slow cooker method, add the smoked kielbasa (cut into 1-inch pieces), sauerkraut with its juice, diced onion, diced apple, Dijon mustard, and caraway or dill seeds into the slow cooker. Stir everything well to combine all those wonderful flavors.

Step 2: Set your slow cooker on HIGH and cook for 2 to 3 hours, or on LOW for 4 to 6 hours. The sausage becomes tender while the sauerkraut and apple soften nicely, letting all the flavors meld together. Check occasionally to make sure it’s simmering well.

Step 3: If you prefer the Instant Pot method, start by turning it to the sauté function. Add the oil and brown the sausage pieces for 5 to 7 minutes, turning them frequently so they develop a lovely caramelized crust. Do this in batches if needed, then remove the sausage and set aside.

Step 4: Pour 1 cup of chicken broth or water into the bottom of the Instant Pot to prevent burning and help build steam for pressure cooking.

Step 5: Layer the sauerkraut, diced apple, and Dijon mustard evenly on the bottom of the pot. This layering helps flavors disperse evenly while cooking.

Step 6: Place the browned sausage pieces on top of the sauerkraut mixture. This allows the sausage flavor to infuse into the sauerkraut during cooking.

Step 7: Seal the Instant Pot lid securely and set it to Pressure Cook on high for 15 minutes. After cooking, let the pressure release naturally for a few minutes before manually releasing any leftover pressure. Then open the lid carefully.

Servings and Timing

This recipe serves about 6 generous portions, making it great for a family dinner or meal prepping. Prep time is incredibly quick—around 10 minutes to chop and assemble everything. Cooking time varies depending on the method: 2 to 3 hours on high or 4 to 6 hours on low in the slow cooker, or just 15 minutes in the Instant Pot plus prep and sauté time. There’s no resting or cooling time required, so it’s best served hot, straight from the cooker for maximum flavor.

How to Serve This Slow Cooker Sausage and Sauerkraut Recipe

A white plate holds a dish with two main layers: the bottom layer is made up of cooked, light yellow shredded cabbage mixed with pale onion pieces, showing a soft, tender texture; scattered throughout are brown caraway seeds that add detail. Above the cabbage, there are several thick, round slices of browned sausage with a smooth, pinkish interior and crispy, dark reddish-brown edges that stand out against the lighter colors of the cabbage. Small green parsley flakes are sprinkled on top as a fresh garnish. The plate is placed on a white marbled surface and the photo is taken with an iphone --ar 4:5 --v 7

When I serve this Slow Cooker Sausage and Sauerkraut Recipe, I love to keep things simple yet satisfying. It pairs wonderfully with creamy mashed potatoes or buttery noodles, which soak up the flavorful juices beautifully. For a lighter option, I often serve it alongside roasted vegetables or a fresh green salad to balance the richness.

Garnishing this dish is really fun too—I sometimes sprinkle a few fresh dill fronds or chopped parsley over the top to add a pop of color and freshness. The presentation feels rustic and cozy when served directly from a large serving bowl or casserole dish, perfect for inviting everyone to dig in family-style. Hot is how I serve it every time to keep that smoky, tangy richness vibrant and comforting.

As for drinks, I find that a crisp white wine like Riesling or a light German pilsner complements the dish exquisitely. For non-alcoholic options, a sparkling apple cider mirrors the apple flavor and adds a refreshing fizz. This meal fits so many occasions—from casual weeknights when I want something easy and tasty, to festive gatherings that call for hearty, crowd-pleasing fare.

Variations

I love experimenting with this Slow Cooker Sausage and Sauerkraut Recipe to suit dietary needs or just add a new twist. For instance, if you want to lighten it up, swapping regular smoked sausage for a lean turkey kielbasa still delivers that smoky punch with fewer calories. If you prefer a vegetarian version, try using plant-based sausage alternatives and vegetable broth—just keep in mind the flavor intensity will shift, so adding smoked paprika or liquid smoke can help mimic that deep, smoky taste.

For a flavor twist, I sometimes add sliced bell peppers or even diced potatoes into the slow cooker for extra heartiness and texture. Another variation is to swap Dijon mustard for a grainy mustard or add a splash of apple cider vinegar to punch up the acidity if you like a tangier dish. And if you don’t have a slow cooker or Instant Pot, you can absolutely make this on the stovetop—just simmer everything gently in a heavy pot for about an hour until the sausage is heated through and the flavors meld beautifully.

Storage and Reheating

Storing Leftovers

Leftovers from this Slow Cooker Sausage and Sauerkraut Recipe store beautifully. I transfer any extras to airtight containers—glass works great to avoid odors—and keep them in the refrigerator. The flavors continue to develop a bit overnight, and leftovers will stay delicious for up to 3 to 4 days. Make sure to cool the dish to room temperature before refrigerating to keep the texture just right.

Freezing

This dish freezes quite well, which is a lifesaver if you want to prepare in advance. I recommend freezing in portion-sized airtight containers or heavy-duty freezer bags to avoid freezer burn. It keeps best for up to 2 months. When ready to eat, thaw overnight in the refrigerator, which helps preserve the texture and flavor.

Reheating

To reheat, I prefer warming leftovers gently on the stovetop over medium-low heat, stirring occasionally to prevent sticking and ensure even heating. You can add a splash of broth or water if the dish seems dry. Avoid microwaving directly from frozen, as it can make the sausage tough and the sauerkraut watery. Reheating slowly really brings back that fresh-cooked taste and texture I love.

FAQs

Can I use fresh sausage instead of smoked kielbasa in this recipe?

Yes, you can use fresh sausage, but I recommend browning it first to develop deeper flavor before adding it to the slow cooker or Instant Pot. Keep in mind that fresh sausage might not have the smoky notes that kielbasa provides, so you might want to add smoked paprika or a splash of liquid smoke to replicate that taste.

Is this recipe gluten-free?

Absolutely! All the ingredients in this Slow Cooker Sausage and Sauerkraut Recipe are naturally gluten-free as long as you check that your sausage and mustard don’t contain any hidden gluten additives. Always verify labels if gluten sensitivity is a concern.

Can I prepare this recipe in advance and reheat it later?

Definitely. This is a great recipe for meal prep. You can cook it completely, then store it in the fridge and reheat gently when you’re ready to eat. The flavors actually develop even more after sitting overnight, making it a perfect make-ahead meal.

What can I serve instead of sauerkraut?

If you’re not a fan of sauerkraut, you can try using shredded cabbage cooked with a splash of apple cider vinegar for a similar tangy effect. While it won’t have the fermented tang of sauerkraut, it still offers a nice fresh bite and texture with a milder flavor.

Is it necessary to brown the sausage before slow cooking?

Browning sausage is optional but highly recommended because it adds extra flavor and a pleasant texture. The caramelized bits that form when you brown the sausage provide a depth of taste that you don’t get with raw sausage. If you’re short on time, you can skip this step, but you might notice a slightly different flavor profile.

Conclusion

I truly hope you give this Slow Cooker Sausage and Sauerkraut Recipe a try because it’s one of those dishes that never fails to bring comfort and smiles to the table. It’s simple, packed with delicious layers of flavor, and super adaptable to suit whatever you have on hand or prefer to eat. Once you make it, I bet it’ll become one of your favorite go-to meals just like it is for me.