These are the best and easiest ever.
1 cup peanut butter
3/4 cup sugar (I used brown)
1 tsp baking soda
1 tsp vanilla
extra granulated sugar to sprinkle on formed cookies
Mix the first 4- it all comes together with the addition of the egg. The batter will be a little different depending on your peanut butter, but what ever type you use it will work. Bake on 350º for about 8-10 minutes depending on the size of your cookies. They will spread a bit. The first time I made giant ones and the second time ones that were on the small side. It doubles perfectly too.
They are flourless- it works.