Preheat oven to 350 degrees.
In a mixing bowl, cream together:
1/2 cup butter
1/2 cup peanut butter
1/2 cup white sugar
1/2 cup brown sugar
1 tsp. vanilla
1 egg
Blend together dry ingredients and then mix into the creamed mixture:
1-1/4 cup flour
1/2 tsp. baking powder
2/4 tsp. baking soda
Drop by rounded tsps. onto baking sheets, leaving at least an inch between each cookie. Using a fork, dip the tines into a small bowl of sugar, making a criss-cross pattern on each cookie. Dip into sugar for each cookie. When finished, bake in a 350 degrees oven for 10-12 minutes.
