Kielbasa With Sauerkraut Skillet Recipe

This classic Polish kielbasa with sauerkraut recipe is the kind of warm, savory dish that always makes me think of cozy evenings at home. And the best part? It’s very simple to make. With just a handful of ingredients and a slow cooker doing most of the work, this is a true set-it-and-forget-it comfort meal.

Made with smoked kielbasa, chopped sauerkraut, soft caramelized onions, Dijon mustard, and a little brown sugar, this version balances richness and tang with just a hint of sweetness. The addition of butter rounds it all out with warmth and depth. Whether you’re using your slow cooker or making it gently on the stovetop, this dish delivers authentic Polish flavor with almost no effort.

Necessary Equipment

• 5-quart or larger slow cooker (or large stovetop pot)
• Cutting board and sharp knife
• Measuring spoons and mixing bowl
• Spoon or tongs for stirring
  (No complicated tools—just good, old-fashioned slow cooking.)

Key Ingredients & Substitutions

Smoked Kielbasa – 2 pounds

You can use traditional Polish kielbasa, hunter’s sausage, or any variety of smoked sausage. Slice it into coins or cube it—both work well in this dish. Pork gives the most classic flavor, but beef or turkey kielbasa are also great choices.

Sauerkraut – 2 pounds (drained and chopped)

Use homemade Polish sauerkraut or homemade if you have it. Drain it well before adding, and give it a rough chop for a more even texture. For a milder taste, you can rinse it slightly before cooking.

Onions – 2 large, diced

These caramelize as they cook, becoming soft and sweet. Red or yellow onions both work well.

Butter – 3 tablespoons (softened)

Adds richness and depth to the sauce. You could substitute with olive oil if needed, but butter brings the flavor home.

Brown Sugar – 2 tablespoons

Balances the acidity of the kraut and helps mellow out the flavor. If you prefer, swap with maple syrup or honey.

Dijon Mustard – 2 tablespoons

Adds a bit of tang and complexity. Spicy brown mustard or even whole grain mustard also work here.

Caraway Seed – ½ teaspoon

Optional but highly recommended. It adds a warm, earthy note that deepens the flavor.

Salt & Pepper – to taste

Start with just a pinch—both kielbasa and sauerkraut are naturally salty.

Step-by-Step Instructions

1. Prepare the Slow Cooker

Lightly spray or butter your 5-quart slow cooker to prevent sticking. You can also make this in a large stovetop pot on low heat if you prefer.

(Tip: A light layer of fat helps prevent scorching and makes cleanup easier.)

2. Layer the Ingredients

Add the diced onions to the bottom of the slow cooker. Then add the drained, chopped sauerkraut, spreading it evenly. Finally, layer the sliced kielbasa on top of the sauerkraut.

3. Make the Sauce

In a small bowl or measuring cup, whisk together the softened butter, mustard, and brown sugar until creamy and smooth.

4. Pour and Cook

Drizzle the sauce mixture evenly over the kielbasa and kraut. Cover and cook on low for 4–5 hours.

5. Stir and Serve

Before serving, stir gently to mix everything together and blend the flavors. Season with salt and pepper if needed. Serve hot with your favorite sides.

Tips for the Best Kielbasa and Sauerkraut

• Drain the sauerkraut well so the dish doesn’t become too watery.
• Don’t skip the mustard and sugar—they mellow and balance the flavor beautifully.
• Use good-quality kielbasa for the best results—smoked is key here.
• Chop the sauerkraut if it’s long and stringy—this makes the dish easier to eat and mix.
• Want more punch? Add a splash of apple cider vinegar or a bit of caraway seed.

Make-Ahead & Storage

Make-Ahead Tips

You can prep this dish entirely the night before—just layer the ingredients in the slow cooker insert, cover, and refrigerate. In the morning, pop it into the base and start cooking. The flavors deepen beautifully as it sits.

Storage

Once cooled, transfer leftovers to an airtight container and store in the fridge for up to 4 days. It actually tastes even better the next day.

To Reheat

Reheat gently in a skillet over medium heat or microwave in 60-second intervals, stirring in between. You can also pop it back into the slow cooker on low for 1 hour if you’re feeding a crowd.

Common Mistakes

Over-seasoning from the start: Both kielbasa and sauerkraut can be salty on their own. Always taste before adding extra salt at the end.

Not draining sauerkraut: Excess moisture can water down the dish and make it too sour. Drain well and give it a rough chop for a better texture.

Skipping the sauce: The butter, brown sugar, and mustard aren’t optional flavor boosters—they bring the whole dish together with richness, sweetness, and tang.

Serving Suggestions

Because this Kiełbasa z Kapustą is very flavorful I recommend serving it with a side dish of your choice. My favorite is freshly baked Sourdough bread or French baguette, but you can also serve it with potatoes, or as a side dish to your meal.

You can also boil pasta, and make a dish very similar to Polish Łazanki (usually very small square shaped pasta is used). This is a traditional Polish dish that is loved by all children in Poland!

FAQ

Print