Preheat oven to 350 degrees F

Combine the peanut butter, white sugar and egg (baking powder & salt if you choose). Mix until smooth.

Roll mixture into 1 inch (walnut sized) balls. Place on ungreased cookie sheet and flatten each ball with a fork. Bake at 350 degrees F for 8-10 minutes.

Cool for 5-7 minutes then place on wire rack. These cookies are best when they are still soft and just barely brown on the bottoms.