2 egg whites, beaten until frothy
2/3 c. granulated sugar
1/4 tsp. cream of tartar
1 pkg. chocolate chips
1/2 c. chopped walnuts

Preheat oven to 375 degrees. Beat sugar and cream of tartar in egg whites until stiff. Fold in chips and nuts. Drop by spoonful onto greased cookie sheet. Place in oven and at once, turn off oven. Leave in oven overnight without opening the door. This recipe also works well as a last batch after you have been using the oven for the evening.