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Let your slow cooker do the work with Slow Cooker Corned Beef & Guinness Reduction. The flavors of Guinness, brown sugar and horseradish mustard will simmer in your slow cooker and infuse your corned beef!
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4.88 from 31 votes

Slow Cooker Corned Beef Recipe With Guinness Reduction

Guinness, brown sugar and horseradish mustard combine in your slow cooker and flavor your corned beef. Slow Cooker Corned Beef Recipe With Guinness Reduction cooks on it's own during the day for an easy Saint Patrick's Day dinner you can come home too! 
Prep Time5 minutes
Cook Time8 hours
Total Time8 hours 5 minutes
Course: Main Course
Cuisine: Irish
Keyword: slow cooker corned beef, slow cooker corned beef recipe
Servings: 6
Calories: 584kcal
Author: Gwynn Galvin

Ingredients

Instructions

  • Place onion and garlic in slow cooker. Top with corned beef.
  • Combine Guinness, brown sugar and mustard. Pour over corned beef.
  • Cook 7-8 hours on low or 3-4 hours on high. Remove corned beef from slow cooker.
  • Transfer liquid to saucepot. In small bowl, combine flour and 3 Tbs. cold water until smooth and blended and stir into saucepot. Bring to a boil over medium-high heat. Reduce heat to low and simmer until slightly reduced and thickened, 5-7 minutes. Serve Guinness Reduction with corned beef.

Notes

Makes 6 servings.
Swirls of Flavor Recipe Tips
  • No horseradish mustard? Just combine mustard and horseradish and make your own!
  • Love a bit of heat? Add sliced jalapenos for a surprise flavor addition
Substitutions
  • You can substitute another stout beer for the Guinness beer
  • Light brown sugar can be substituted for the dark brown sugar

Nutrition

Calories: 584kcal | Carbohydrates: 33g | Protein: 34g | Fat: 34g | Saturated Fat: 11g | Cholesterol: 122mg | Sodium: 2887mg | Potassium: 757mg | Fiber: 1g | Sugar: 28g | Vitamin C: 63mg | Calcium: 52mg | Iron: 4mg