Mustard Glazed Brisket Posted by Darlene 4/1/02 10:59:50 am Starts on the stove top, finishes in the oven for tender every time. Serves 6. 1 (3 to 4 pound) boneless beef brisket 2 cloves garlic, peeled 1 large onion, sliced 2 stalks celery 8 black peppercorns 4 whole allspice 1 bay leaf 3/4 cup brown sugar 3 tablespoons prepared mustard Place brisket, garlic, onion, celery, peppercorns, allspice and bay leaf in a large soup pot. Cover with water. Simmer covered 3 to 3 1/2 hours until tender, adding water as necessary. Remove brisket and place in a roasting pan with 1/2 cup of the cooking liquid. Combine brown sugar and prepared mustard. Salt and pepper brisket and spread with the mustard glaze. Bake for 15 to 20 minutes at 350 degrees F until glaze bubbles and is browned.