1/2 c. butter
1/2 c. peanut butter
1/2 c. granulated sugar
1/2 c. brown sugar, packed
1 egg
1 1/4 c. flour
3/4 tsp. baking soda
1/4 tsp. baking powder
1/4 tsp. salt

Mix thoroughly butter, peanut butter, granulated sugar, brown sugar, and egg at high speed for 3 minutes. Blend in flour, soda, baking powder, and salt. Cover and chill. Heat oven to 375 degrees. Shape dough into 1 inch balls. Place 3 inches apart on lightly greased baking sheet. With fork dipped in flour, flatten in crisscross pattern to 2 inches. Bake 10-12 minutes or until set but not hard.