Potato Puffs

2 cups cold mashed potatoes
1 egg, beaten
1/2 teaspoon salt
1/8 teaspoon pepper
1/2 cup grated American cheese
  Fine dry bread crumbs
  Shortening

Combine potatoes, egg, salt, pepper annd cheese. Shape into balls and roll in crumbs. Deep fry in375 degree shortening until brown, about 3 minutes. Drain. Put puffs on paper towels. Serve hot.