Thaw in Refrigerator.
Oven: Preheat oven to 325°F. Remove brisket from package and place in a roasting pan. Add one cup of water to bottom of pan. Cover with foil and heat 45-60 minutes. Remove from oven, scrape spices from brisket. To serve, carve into thin slices across grain of meat. To heat from frozen allow 60-75 minutes. Brisket may be thawed, spices removed and sliced for sandwiches.