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4.81 from 26 votes

Slow Roasted Corned Beef with Mustard Rub

Celebrate St. Patrick's Day in style with mustard-rubbed slow-roasted corned beef. Delicious, juicy beef, zesty mustard, and aromatic spices
Prep Time5 minutes
Cook Time4 hours 5 minutes
Total Time4 hours 10 minutes
Course: Dinner, Lunch, Main Dish
Cuisine: American
Keyword: Corned Beef
Servings: 8 Servings
Calories: 466kcal
Author: Belly Laugh Living

Ingredients

  • 4 Pounds Corned Beef Brisket (makes enough for a 3 - 5 pound Corned Beef Brisket)
  • 1 Large Onion
  • Cup Dijon Mustard
  • 1 teaspoon Black Pepper
  • 1 teaspoon Onion Powder
  • 1 teaspoon Garlic Powder
  • 1 teaspoon Thyme
  • Spice packet included with the Corned Beef

Instructions

  • Preheat the oven to 350°. Bring water to a boil in a large stock pot. Place corned beef in the boiling water. Boil for four minutes.
  • Remove corned beef from water. Let cool for 3 or 4 minutes.
    4 Pounds Corned Beef Brisket
  • Put enough foil in a casserole dish to wrap around the corned beef.
  • Slice onions and place on the foil in the casserole dish
    1 Large Onion
  • Mix together the mustard, thyme, onion powder, garlic powder, and the contents of the seasoning package included with the corned beef package.
    ⅓ Cup Dijon Mustard, 1 teaspoon Black Pepper, 1 teaspoon Garlic Powder, 1 teaspoon Thyme, 1 teaspoon Onion Powder
  • Rub mustard mixture over the corned beef.
  • Place corned beef on top of the sliced onions.
  • Wrap foil around the corned beef to seal. Bake for 4 to 4 ½ hours in 350° oven.
  • Let cool for a few minutes. Slice!!!
  • Enjoy!! Make sure to check out some of our recipes for using corned beef.

Nutrition

Calories: 466kcal | Carbohydrates: 3g | Protein: 34g | Fat: 34g | Saturated Fat: 11g | Cholesterol: 122mg | Sodium: 2868mg | Potassium: 718mg | Fiber: 1g | Sugar: 1g | Vitamin A: 20IU | Vitamin C: 63.2mg | Calcium: 26mg | Iron: 4.1mg