2 egg whites, beat until frothy
2/3 c. sugar
1 c. chocolate chips

Beat 2 egg whites until frothy and slowly add 2/3 cups sugar. Beat until very stiff; add food coloring if desired. Fold in 1 cup chocolate chips. Drop by teaspoon on greased cookie sheet. Preheat oven to 350 degrees, when ready place cookies in oven. TURN OVEN OFF leave overnight or at least 6 hours. DO NOT OPEN OVEN UNTIL DONE.