German-Style Slow-Cooked Kale (Grünkohl) with Smoked Pork (Kassler)
Updated 17 Feb 2025
German-Style Slow-Cooked Kale (Grünkohl) with Smoked Pork (Kassler)A German Winter Classic “Grünkohl mit Kassler” – Perfect for Cold Days! Kassler (smoked pork) and sausages are simmered with umami-rich winter kale, creating a warm and comforting dish. This traditional favorite is popular in northern Germany, particularly in cities like Hamburg and Bremen. Easy to make yet packed with authentic flavors, it’s a must-try this winter to bring a taste of Germany to your table!
Ingredients
- 400g of Traditional Grünkohl (or Curly Kale as a substitute) *
- 1 of Onion
- 1 tablespoon of Butter
- 200ml of water
- ¾ teaspoon of Bouillon (or adjust to taste)
- 600g of Kassler (smoked pork) in a block or 4 slices of thick-cut ham
- 4 of Sausages (Knackwurst, Mettwurst, etc.)
- A suitable amount of Salt
- A suitable amount of Pepper
- 1 of Allspice berry (if available, crushed)
- 1 tablespoon of Mustard
- 1 tablespoon of Oatmeal (for thickening)

How to make it
1/ Prepare the grünkohl: Wash the grünkohl thoroughly and remove the tough stems. The tender parts can be thinly sliced if desired.
2/ Blanch the grünkohl: Bring a large pot of water to a boil and add a pinch of salt. Blanch the grünkohl for 2 to 3 minutes until it turns a vibrant green. Drain using a colander, rinse with cold water to cool, then squeeze out excess moisture and roughly chop.
3/ Sauté the onion: Finely chop the onion. Heat a large pot over medium heat, add butter, and sauté the chopped onion until translucent.
4/ Add the grünkohl and sauté: Add the chopped grünkohl to the pot and stir-fry it together with the onions.
5/ Start simmering:Pour in 200ml of water and add the bouillon. Stir well, cover the pot, and let it simmer on low heat for 30 minutes.
6/ Add the Kassler: Place the whole Kassler (smoked pork) block into the pot and continue simmering for another 30 minutes to allow the meat’s flavor to infuse into the broth.
7/ Add the sausages: To prevent bursting, prick small holes in the sausages using a fork before adding them to the pot. Simmer for another 15 minutes.
8/ Season to finish: Remove the Kassler and sausages from the pot and keep them warm. Season the grünkohl with salt, pepper, mustard, and allspice, stirring well to combine. [caption id="attachment_5735" align="aligncenter" width="300"]

* Allspice[/caption]
9/ Thicken the dish: Stir in the oatmeal and cook for a few more minutes, stirring occasionally, until the dish thickens slightly.
10/ Serve and enjoy: Slice the Kassler and plate the grünkohl. Arrange the sausages and Kassler on top, and serve with mustard on the side if desired.

Good to know
⭐️Make Your Authentic Grünkohl mit Kassler Even Better!⭐️
⭐️ Kassler : Kassler is a traditional German smoked and brined pork known for its juicy texture, balanced saltiness, and smoky aroma. It’s perfect for braising, grilling, or roasting. For this recipe, I used Kassler Nacken (shoulder cut), which turned out incredibly tender and melt-in-your-mouth delicious! If you prefer a leaner, milder option, Kassler Lachs (pork loin or ham cut) is also a great choice.
⭐️ No Kassler? Try These Substitutes!: If Kassler is hard to find outside Germany, try using a block of smoked ham.
⭐️ Keep the Kassler Whole for the Best Texture: If using a Kassler block, keep it whole while cooking to retain its juiciness and structure. Slice it just before serving for the best texture.
⭐️ Mind the Salt!: Since Kassler naturally releases salt and umami during cooking, be cautious when adding extra salt. You can also reduce the bouillon to ½ teaspoon for a milder taste.
Adjust seasoning at the end for perfect balance.
⭐ Adjusting the Water Amount: The water quantity depends on the amount of kale—feel free to adjust it as the dish simmers.
⭐️ Best Sausages for This Dish: For this recipe, I used Knackwurst from Berlin, but Mettwurst, Bockwurst, or other smoked sausages also work beautifully.
⭐️ Thickening the Dish: Oatmeal helps thicken the dish while adding subtle flavor. If you prefer, you can substitute it with cornstarch or potato starch mixed with water for a smoother consistency.
⭐️Pairing with Beer: This dish pairs wonderfully with beer, a staple of German winters! The smoky flavors of Kassler and sausages go exceptionally well with lagers and Dunkel (dark beer). If you want to enhance the richness, a Weizen (wheat beer) is also a great choice. In particular, a Schwarzbier like Köstritzer Schwarzbier from northern Germany perfectly complements the umami depth of this dish. 🍻
This time, I didn’t have any dark beer at home, so I enjoyed it with a Pilsner instead. The crisp, refreshing taste of the Pilsner actually balanced out the richness of the Kassler quite well—an unexpected but delightful combination!😅
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