1 c. sifted all-purpose flour
1/4 c. unsifted whole wheat flour
1/2 tsp. baking soda
1/4 c. unsalted butter
1/4 c. granulated sugar
1/4 c. firmly packed light brown sugar
1 lg. egg
1 lg. egg white
3 tsp. vanilla extract
1 sq. (1 oz.) semi-sweet chocolate, grated fine

Preparation: 10 minutes. Baking: 10 minutes.

1. Preheat the oven to 375 degrees F. In a small bowl, combine the all-purpose flour, whole wheat flour and baking soda and set aside.

2. In the large bowl of an electric mixer, heat the butter, granulated sugar and brown sugar at moderately low speed for 2 minutes or until smooth and creamy; then beat in the egg, egg white and vanilla extract.

3. Using a wooden spoon, mix in the dry ingredients and the grated chocolate.

4. Drop the dough by rounded teaspoonfuls onto ungreased baking sheets, spacing the cookies about 2 inches apart. Bake for 8 to 10 minutes or until lightly browned around the edges. Remove immediately to wire racks to cool. Makes about 36 cookies.