Preheat the oven to 325 degrees.

Pat your ham dry and place in a deep baking dish lined with foil.

In a small bowl, combine mustard, brown sugar and cloves. Rub this mixture all over the outside of the ham.

Using toothpicks to hold the pineapple slices in place, cover the entire ham with pineapple.

Using a large piece of foil, loosely cover the entire ham in foil.

Place in the oven and bake 15 minutes for every pound of ham. So, if you have a 10 pound ham, bake for 2.5 hours.