Someone asked for the recipe so here it is -- I no longer know where I found it so I am considering it "open source!"
Peanut Butter Cookies
1 1/4 cups flour
1/4 tsp baking soda
1/4 tsp salt
1/2 cup butter
1/2 cup sugar
2/3 cup brown sugar
2/3 cup peanut butter
1 large egg
Stir in everything but egg and mix with hands. Add egg. Shape dough into small balls (approx one inch). Place on cookie sheets and flatten with a fork (press down, turn fork 90 degrees press down again). Bake for 12-15 min at 350° F. Makes approx 3 doz.
I also have notes for an alternate version that requires no flour; in fact there's not much of anything:
1 cup peanut butter, 1/2 cup sugar, 1 large egg.
Mix, bake at 325° F for 15 min; makes 24.