Preparation Instructions Oven for Bone-In Ham Remove ham from package and discard the round, plastic bone guard. Place the largest cut surface of the ham face down in a large baking pan or roaster with 2-3 inch sides. Add 1 cup water to the pan. Cover pan securely with foil or tight-fitting roaster lid. Bake at 325º F for 15 minutes per pound or until ham is warm. Need Something Else? All FAQs Go Brand Homepage Go Contact Page Go