Bake smoked ham in a covered roaster 18 to 20 minutes to the pound at 325°F to 350°F, or to an internal temperature of 150°F. Remove skin.
For a flavorful smoked ham finish, score fat and insert whole cloves at intersections. Brush ham with brown sugar glaze (2/3 cup brown sugar + 1/4 cup apple cider) if desired. Bake uncovered for remaining 30 minutes. Serve hot or cold. If a milder ham is desired, soak 4 to 8 hours in cold water before cooking.