1/4 c. butter
1/4 c. shortening
1/2 c. peanut butter
1/2 c. granulated sugar
1/2 c. packed brown sugar
1 egg
1 1/4 c. unsifted all-purpose flour
3/4 tsp. baking soda
1/2 tsp. baking powder
1/4 tsp. salt
1 c. (6 oz.) Reese's peanut butter chips

Cream butter, shortening, peanut butter, sugar, brown sugar and egg in a large bowl. Blend in flour, baking soda, baking powder and salt. Stir in peanut butter chips. Shape into 1 inch balls. Place on ungreased cookie sheet. Flatten in a criss-cross pattern with a fork dipped in sugar. Bake at 375 degrees for 10-20 minutes. Remove from cookie sheet onto a wire rack.