Step 1

Preheat the oven to 375 degrees. Line a baking sheet with foil for easier cleanup.

Step 2

Brush a thick coating of Dijon mustard over the entire piece of beef. Place the fat side up on a large piece of tin foil.

Step 3

Next, sprinkle the brown sugar on top evenly.

Step 4

Wrap the corned beef with foil so that space is left between the top of the corned beef and the tin foil.

Step 5

Wrap in a second piece of foil. Place into the oven and bake for 3 hours.

Step 6

Open the foil and broil the corned beef for 2-3 minutes, until the top is bubbly and lightly browned.

Step 7

Watch carefully so it doesn’t burn.

Step 8

Let the corned beef rest for at least 10 minutes before slicing across the grain of the meat.

Step 9

Serve with the reserved extra Dijon mustard on the side if desired. Enjoy!