Preheat your oven to 350°F (180°C) and line a baking sheet with parchment paper.

In a large mixing bowl, combine rolled oats, protein powder, and salt.

In a separate bowl, mix peanut butter, honey or maple syrup, and vanilla extract until smooth.

Slowly add the wet mixture to the dry ingredients, mixing well until everything is combined. If using chocolate chips, fold them in now.

Using a spoon or cookie scoop, place dollops of the mixture onto the lined baking sheet, leaving space between each cookie.

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

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