Stir peanut butter, egg, and sugar together until smooth.
Scoop onto a parchment lined baking sheet. (Roll into 1″ balls with your hands, if you do not have a scoop.) Press down with the back of a fork and then press again from the opposite direction, to form the criss-cross pattern on top.
These cookies don’t spread at all. Bake for 10 minutes and then let cool on the tray for 1-2 minutes before removing to a wire rack to finish cooling.
Store in an airtight container. Enjoy!
Notes
Add a handful of chocolate chips to change up this recipe.