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Baked Corned Beef with Mustard and Brown Sugar – Tender, Flavor-Packed Classic

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This Baked Corned Beef with Mustard and Brown Sugar is oven-roasted until tender and glazed with a sweet, tangy crust. It’s a simple twist on a classic that’s perfect for holidays or hearty dinners.

Ingredients

Scale
  • 34 lb corned beef brisket (flat or point cut)

  • 1/2 cup brown sugar

  • 3 tbsp Dijon or whole grain mustard

  • 1/2 cup water or beef broth

  • Optional: garlic powder, red pepper flakes, or pickling spices

Instructions

  • Preheat oven to 325°F. Line a roasting pan with foil and add a rack if desired.

  • Rinse corned beef and pat dry. Place in prepared pan.

  • Mix mustard and brown sugar. Spread half the mixture on the beef.

  • Add water or broth to the bottom of the pan (not over the meat).

  • Cover tightly with foil and bake for 2.5 to 3 hours, until fork-tender.

  • Uncover, spread remaining glaze on top, and bake for another 20–30 minutes until golden and sticky.

  • Rest for 10–15 minutes before slicing against the grain.

Notes

  • Trim excess fat for a leaner result.

  • Try maple syrup for a different glaze flavor.

  • Great for sandwiches and leftover recipes.