Marmalade Roasted Corned Beef

1/4 cup brown sugar
3 tablespoons orange marmalade (or apricot or peach preserves)
1 tablespoon sesame seeds
2 teaspoons soy sauce
1 (3 pound) corned beef brisket

Rinse brisket off. Place baking rack in the bottom of a roasting pan. Spray rack with nonstick spray, and place beef fat side up on the rack. Fill the bottom of the pan (up to the rack) with water.

Mix all other ingredients in a bowl and spoon glaze over the top of the corn beef. Bake at 300 degrees F for approximately 3 hours. If the glaze begins to burn while cooking, loosely cover with aluminum foil. Slice thinly against the grain to serve.