preheat oven 375°F

lightly grease cookie sheet

mix flour,baking soda,and baking powder.

beat togetherpeanut butter,butter,sugars,and vanilla, until light and fluffy.

beat in egg until smooth.

stir in flour mixture.

roll pieces of dough into small balls.

place 2inches apart on sheet and flaten with fork

bake 10 minutes until brown

let stand 5 min.on sheet before moving.