Preheat oven to 350 degrees. Beat egg whites stiff. Add sugar and continue beating. Fold the nuts and chocolate pieces in. Drop with a spoon onto a cookie sheet sprayed with a no-stick cooking spray.

Cut off oven as you put the cookies in. In a gas oven, with pilot light burning, leave in for 2-3 hours. In an electric oven, leave in over night. Do not open the door of the oven, until the cookies are finished.