Preheat oven to 350 degrees
Line two baking trays with parchment paper
Cream the peanut butter for a few minutes until fluffy and lightens in color and texture
Add the milk and stir to combine
Gradually add the flour in until mixed
Turn out onto a floured surface to roll out
Roll out half the dough and cut out using a simple shaped cookie cutter as the dough may be a little too crumbly for a fancy shape.
Bake for 20 minutes or until just starting to turn golden around on the bottom and the edges
Leave to cool completely on the baking sheets.
Enjoy!