Then best easy peanut butter cookies you'll ever make...
Combine all the ingredients. Let the cookie dough rest in the fridge for 30 minutes. Divide the dough into 18 even portions. Roll them into little smooth balls. Place them on a baking tray covered with baking paper. Then put it all in the fridge for 30 minutes.
Press the dough balls down with a fork making the traditional cross imprints. Bake the peanut cookies (you can bake the cookies in batches if necessary) in a preheated oven at 356°F (180°C) for 20 minutes. Remove the baked cookies from the oven. They will still be a little soft to the touch but they will set once the cookies cool down. Bake another batch of cookies.