2 egg whites, beaten
2/3 c. sugar
1 tsp. vanilla
1 c. chocolate chips
1 c. nuts (if desired)

Beat 2 egg whites and gradually add 2/3 cup sugar. Add 1 teaspoon vanilla. Fold in 1 cup chocolate chips and nuts, if desired. Drop on greased cookie sheet and place in a preheated 350 degree oven. Turn oven OFF immediately and leave overnight or at least 4 hours.