Preheat your oven to 350°F (175°C) and prepare a baking sheet by lining it with parchment paper.

In a medium-sized mixing bowl, combine peanut butter, granulated sugar, and egg until a smooth dough forms.

Scoop out portions of dough, roll into balls, and place on the baking sheet with space in between.

Flatten each ball with a fork to create a crisscross pattern.

Bake for 10 to 12 minutes until the edges are golden. Remove while still soft in the center.

Allow cookies to cool on the baking sheet for 5 minutes, then transfer to wire racks.