Preheat the oven to 350°F (175°C).

In a mixing bowl, whisk together the flour, baking soda, and salt.

In another bowl, mix the peanut butter, brown sugar, egg, and vanilla extract until smooth.

Gradually add the dry ingredients to the wet mixture, stirring until combined.

Fold in the chocolate chips.

Drop tablespoon-sized balls of dough onto a baking sheet lined with parchment paper.

Bake for 10-12 minutes or until the edges are lightly golden.

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