Easiest Peanut Butter Cookies

1 egg
1 cup chunky peanut butter
1 cup sugar
1 teaspoon vanilla

Preheat oven to 350 degrees. Beat the egg in a bowl until foamy. Add the vanilla and stir. Add the peanut butter and the sugar and mix until well combined. Shape the dough into balls and place on greased cookie sheet. Take a fork and press down to flatten, then press down again at a 90 degree angle to form a criss-cross pattern.

Bake 9-10 minutes at 350 degrees. Remove to rack to cool.