Preheat oven to 375 degrees F.
In a medium bowl add flour, baking soda and powder, and salt. Mix to combine. Set aside.
In a stand mixer or electric mixer, beat both sugars, peanut butter, butter and egg on medium; until well blended, scraping down sides as needed.
Stir in flour mixture until just combined.
Shape dough into 1 inch balls. Place on ungreased cookie sheet. Place cookie dough balls 3 inches apart. Flatten in crisscross pattern with fork dipped in additional granulated sugar.
Bake 9-10 minutes; or until lightly golden brown. Cool 5 minutes on cookie sheet, then transfer to a wire rack.
Enjoy!