Cream together the butter, peanut butter and sugars. Then beat in the eggs.
In a separate bowl, sift together the flour, baking soda, salt and baking powder. Stir that into the batter.
Mix well and then refrigerate for an hour or so.
Roll into 1-inch balls and place on a baking sheet. Flatten each ball with a fork - classic peanut butter cookie pattern. Add carob or organic chocolate chips on top before baking if you like that extra something -
Bake at 375ºF for about 10-11 minutes or so. Cool on a rack.