Step 1: Preheat oven to 350ºF (180ºC).

Step 2: In a large bowl, mix together the peanut butter, sugar, and egg.

Step 3: Scoop out a spoonful of dough and roll it into a ball. Place the cookie balls onto a nonstick baking sheet.

Step 4: For extra decoration and to make them cook more evenly, flatten the cookie balls by pressing a fork down on top of them, then press it down again at a 90º angle to make a criss-cross pattern.

Step 5: Bake for 8-10 minutes or until the bottom of the cookies are golden brown.

Step 6: Remove from baking sheet and cool.

Step 7: Enjoy!