2-1/2 lb. beef brisket
1/2 cup prepared mustard
1/4 cup whole mixed pickling spices
1 can (28 oz.) sauerkraut
1/4 lb. grated Swiss cheese
Place brisket on aluminum foil. Spread each side of the brisket with prepared mustard and whole mixed pickling spices. Wrap foil tightly around brisket and place in 8×10 baking dish. Bake at 225°F for 3-1/2 hours or until done.
Remove brisket from foil. Scrape off and discard pickling spices from brisket and trim any excess fat. Cut brisket into 4 to 6 equal portions and place in 8×10 baking dish. Rinse and drain sauerkraut and place on top of brisket. Sprinkle with grated swiss cheese. Place under the broiler until the cheese has browned, about 8 to 10 minutes. Garnish with prepared mustard.