Lightly spray a 5 quart crock pot with vegetable oil spray. Place 1/2 cup of water on the bottom of crock. Add the ham and rub all of the cranberry jelly
over the ham.
Cover with lid and cook on low heat 4-6 hours or until thermometer measures 148 degrees.
Cover with a foil tent and let sit on a platter for 20 minutes. To serve slice into 3.5 oz portions.