DIRECTIONS

Lightly grease baking sheets or line with parchment paper; set aside.
    In a large mixing bowl, beat egg whites until foamy. Add cream of tartar, beating until soft peaks form. Gradually beat in sugar, 1 tablespoon at a time, until stiff peaks form. Beat in vanilla and food coloring if desired. Fold in the chocolate chips.
    Drop by rounded tablespoonfuls 2 in. apart onto prepared baking sheets. Bake at 250° for 30-35 minutes or until dry to the touch. Remove to wire racks to cool. Store in an airtight container. Yield: about 2-1/2 dozen.