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Baked Corned Beef

  • Author: Melissa Belanger
  • Prep Time: 20 minutes
  • Cook Time: 4 hours
  • Total Time: 4 hours 20 minutes
  • Yield: 8 servings 1x
  • Category: Mains
  • Method: Baking
  • Cuisine: Irish/American


This classic Irish-American dish is traditionally boiled with cabbage, but if you want the most flavorful, tender corned beef, there’s a better way. This baked corned beef is topped with mustard and brown sugar and braised in Guinness. Serve it with mashed potatoes and sautéed cabbage for a complete St. Patrick’s Day meal.



  • 1 4-pound corned beef brisket, with seasoning packet
  • 1 cup Guinness or other stout
  • 2 tablespoons dark brown sugar
  • 2 tablespoon whole grain mustard


  1. Preheat oven to 325˚F.
  2. Submerge corned beef in cold water for 15 minutes. Drain and pat dry.
  3. Place corned beef in a baking dish and add Guinness to the pan.
  4. In a small bowl, stir together the brown sugar, mustard and seasoning packet that came with the corned beef. Rub this onto the top of the corned beef.
  5. Cover the pan and bake for 4 hours, removing the cover for the final 30 minutes of cooking.
  6. Remove from oven and allow the corned beef to rest for about 10 minutes before slicing.


If your corned beef is larger than 4 pounds, add 1 hour per pound to the cook time.

Keywords: dairy free, egg free, easy, 5 ingredient, beef, brisket, corned beef, St. Patrick's Day