Peanut Butter Cookies

This is from the Better Homes and Gardens Cookbook

1/2 c. butter or margarine
1/2 c. peanut butter
1/2 c. granulated sugar
1/2 c. packed brown sugar
1/2 tsp. baking soda
1/2 tsp. baking powder
1 egg
1/2 tsp vanilla
1 1/4 c. all-purpose flour
Granulated sugar

In a large mixing bowl beat the butter or margarine and peanut butter with an electric mixer on medium to high speed for 30 seconds. Add the granulated sugar, brown sugar, baking soda and baking powder. Beat till combined, scraping sides of bowl occasionally. Bet in the egg and vanilla till combined. Beat in as much flour as you can with the mixer. Stir in remaining flour. If necessary, cover and chill dough till easy to handle (I actually add about 1/4 c. more flour).
Shape dough into 1 inch balls. Roll in additional granulated sugar to coat. Place balls 2 inches apart on a n ungreased cookie sheet. Flatten by making crisscross marks with the tines of a fork. Bake in a 375 F oven for 7 to 9 minutes, or till bottoms are lightly browned. Transfer cookies to a wire rack. and let cool. Makes about 36 cookies.