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Easy Slow Cooker Oktoberfest Corned Beef and Cabbage

easy slow cooker corned beef and cabbage - featured image

This Easy Slow Cooker Oktoberfest Corned Beef and Cabbage is a game-changer. The dark beer and mustard create a rich, complex broth, the meat turns buttery tender, and the vegetables soak up all that goodness without turning to mush. It’s comfort food that actually delivers on its promises.

Ingredients

Scale
  • 3 to 4 pounds corned beef brisket (with seasoning packet)
  • 1 bottle dark beer (12 ounces)
  • 2 tablespoons whole-grain mustard
  • 2 tablespoons brown sugar
  • 1 tablespoon apple cider vinegar
  • 4 cloves garlic, smashed
  • 1 teaspoon black peppercorns
  • 2 bay leaves
  • 1 head green cabbage (about 2 pounds), cut into 8 wedges with core intact
  • 1.5 pounds baby potatoes (Yukon Gold or red)
  • 4 large carrots, peeled and cut into 2-inch chunks
  • 1 large onion, cut into 8 wedges
  • Fresh parsley, chopped (for serving, optional)
  • Extra whole-grain mustard (for serving, optional)
  • Rye bread or crusty rolls (for serving, optional)

Instructions

  1. Rinse the corned beef under cold water and pat dry with paper towels (optional but recommended to control saltiness).
  2. Layer the aromatics in the slow cooker: smashed garlic cloves, peppercorns, bay leaves, and the seasoning packet from the corned beef.
  3. Place the corned beef fat-side up on top of the aromatics.
  4. In a small bowl, whisk together dark beer, whole-grain mustard, brown sugar, and apple cider vinegar. Pour this mixture over and around the brisket.
  5. Cook on low for 8 to 10 hours. Do not lift the lid during cooking.
  6. After about 6 hours, add the potatoes, carrots, and onion wedges around the brisket, nestling them into the liquid. Replace the lid and continue cooking.
  7. About 45 minutes before serving, add the cabbage wedges to the slow cooker, pushing them down into the liquid. Replace the lid and cook until tender but still bright.
  8. When done, use tongs to transfer the brisket to a cutting board. Let it rest for 10 to 15 minutes.
  9. Slice the brisket against the grain into 1/4-inch thick slices.
  10. Arrange the sliced meat on a platter with the vegetables around it. Spoon a little cooking liquid over the top. Sprinkle with fresh parsley if desired.

Notes

Don’t skip rinsing the brisket to control saltiness. Watch the cabbage timing—add it during the last 45 minutes for best texture. Use dark beer for richness; avoid IPAs. Let the meat rest before slicing to retain juices. The dish tastes even better the next day.

Nutrition

Keywords: slow cooker, corned beef, cabbage, Oktoberfest, St. Patrick's Day, comfort food, one-pot meal