2 egg whites
2/3 c. sugar
1 tsp. vanilla
1 c. of "stuff" (i.e., chocolate chips, nuts, peanut butter chips)

Beat whites until they form peaks. Add sugar, slowly, beating constantly, add vanilla. Fold in "stuff".

Drop on slightly greased cookie sheet - preheat oven to 375 degrees. Put cookies in. Turn off oven. Do not open at least 6 hours or "all night".