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A plate of shredded slow cooker Guinness corned beef with mustard on the side and two beers in the background.

Slow Cooker Guinness Corned Beef

St. Patrick's Day dinner doesn't get easier than this slow cooker Guinness corned beef! After simmering in Guinness and an array of warm spices, this corned beef becomes fork tender and full of flavor. Whether you serve it with a side of cabbage or piled high on a sandwich, everyone always loves this easy-as-can-be corned beef.
Course Main Dishes
Cuisine Irish-American
Prep Time 10 minutes
Cook Time 8 hours
Total Time 8 hours 10 minutes
Servings 10 people
Calories 230kcal


  • Slow cooker


  • 2 (12-ounce) bottles of Guinness
  • 4-5 pounds corned beef with seasoning packet
  • 2 dried bay leaves
  • cup packed brown sugar
  • 2 teaspoons beef bouillon (see note)
  • 1 teaspoon ground coriander
  • 1 teaspoon whole cloves
  • ½ teaspoon mustard powder
  • teaspoon ground allspice
  • A few dashes Worcestershire sauce


  • Pour the Guinness into a slow cooker. Add the contents of the seasoning packet from the corned beef, bay leaves, brown sugar, beef bouillon, coriander, cloves, mustard powder, allspice and Worcestershire sauce. Stir to combine.
  • Add the corned beef with the fatty side up. Cook on low for eight to 10 hours until the corned beef is fork tender. To serve, slice against the grain or shred with two forks. Enjoy!



  • For the beef bouillon, I highly recommend Better Than Bouillon Beef Base, which you can find at just about any grocery store or on Amazon.
  • Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.


Serving: 4ounces | Calories: 230kcal | Protein: 15g | Fat: 15g | Saturated Fat: 5g | Cholesterol: 55mg | Sodium: 1.1mg