Remove skin from ham, and trim fat to 1/4-inch thickness. Make shallow cuts in fat 3/4 inch apart in a diamond pattern. Insert cloves in centers of diamonds.
Place ham in a lightly greased 13- x 9-inch pan.
Stir together brown sugar and next 3 ingredients; spoon mixture over ham.
Bake at 350 on lowest oven rack 2 hours and 30 minutes, basting with pan juices every 15 to 20 minutes.
Remove ham from oven, and let stand 20 minutes before slicing.
