Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large mixing bowl, combine granulated sugar, creamy peanut butter, egg, and vanilla extract. Mix until fully combined.

Using a cookie scoop or two tablespoons, portion out the dough into balls and place them 2 inches apart on the baking sheet.

Gently flatten each cookie ball with a fork to create a crisscross pattern.

Bake in the preheated oven for 10-12 minutes until set and slightly golden.

Allow cookies to cool on the baking sheet for 5-10 minutes before transferring to a wire rack.