Preheat the oven to 170 degrees. Lay parchment paper on a baking tray and set aside.
Beat peanut butter, sugar and butter till soft. Beat in the egg.
Slowly add in the dry ingredients and beat till it forms a dough.
Pinch out twelve equal balls, flatten slightly to around 1/2 inch thickness and place on the baking tray with enough space from each other. Draw patterns on top using a fork.
Bake for 20 minutes till done. Allow to cool completely on a wire rack.
Store in an air tight container - if it stays for the next day, that is!