I made this glaze while preparing a spiral sliced ham in the CI way, see recipe #366252 . I don't much care for ruby port, so used tawny port and also light brown sugar. I reduced the pepper to 1/2 tsp., use more if you wish.A key to this recipe is the quality of cherry preserves. I used preserves from the Kedainiu konservu fabrikas, which contain 35% cherries and no preservatives. I found these at a large ethnic grocery.