Preheat oven to 325°F. Place ham on a rack in a shallow roasting pan. Using a sharp knife, score surface of ham with 1⁄4-inch- deep cuts in a diamond pattern. Cover and bake 13⁄4 to 21⁄4 hours, until an instant-read thermometer inserted into the center of the ham reads 130°F. In a large saucepan, combine grapefruit and orange juices while ham bakes. Bring to a boil; cook until liquid is reduced by half, 6 to 8 minutes. Stir in molasses, honey, brown sugar, mustard and pepper; return to a boil. Reduce heat and simmer, uncovered, until thickened, 12 to 15 minutes. Remove ham from oven. Brush with ⅓ cup glaze. Bake, uncovered, basting occasionally with remaining glaze, until ham reaches 140°F, 15 to 20 minutes longer. From Taste of Home Christmas Copyright © 2018 by Trusted Media Brands, Inc. All rights reserved.