Combine peanut butter, white sugar and brown sugar in a large mixing bowl. Stir until incorporated.

Add the egg, vanilla extract, baking soda and salt. Stir to combine.

Preheat oven to 350° F and line two baking sheets with parchment paper.

Scoop dough into 1-1.5 tbsp. rounds. Flatten rounds and shape crosshatch pattern using a fork.

Bake for 10-12 minutes. Let cool 15-20 minutes before eating.