Place Hostess ham on rack in roasting pan. Pour Pepsi over ham until enough is in the pan to touch the bottom of the ham. Cover and bake at 300 degrees for 2 hours. Drain Pepsi from roasting pan.

Glaze:
4 tbsp. brown sugar
1 1/2 tsp. mustard

Mix brown sugar and mustard. Pour over baked ham. Bake uncovered for 30 minutes at 200 degrees. Save excess glaze from bottom of pan to serve with ham.