3-4 lb. ham
1 c. brown sugar
1 tbsp. cornstarch
1/4 tsp. salt
1 can crushed pineapple
1 tbsp. mustard
2 tbsp. lemon juice

Place ham fat side up on a rack in a shallow roasting pan. Remove skin and excess fat. Score fat surface lightly, cutting diamond shapes. Place a clove in the center of each diamond. Bake at 325 degrees for 1 1/2 hours. In a saucepan, combine brown sugar, cornstarch, salt, pineapple (with juice), mustard and lemon juice. Cook over medium heat, stirring constantly, until mixture thickens and boils. Boil and stir 1 minute. Remove ham from oven. Brush glaze over ham and return to oven for 1/2 hour. Reserve some of the glaze to serve on the side. Before slicing ham, remove cloves.
 

Source: http://www.nancys-kitchen.com