Preheat oven to 180 degrees and line a baking sheet with parchment paper.
In a large bowl, combine the rolled oats, gluten free flour, brown sugar, cinnamon, baking powder, and baking soda. Whisk to mix.
In a separate bowl, whisk together the egg, peanut butter, applesauce, and vanilla until smooth.
Add the wet ingredients to the dry ingredients and stir to combine.
Fold in the chocolate chips.
Spoon cookies onto the parchment paper lined baking sheet and flatten each cookie with a fork.
Bake for 10 to 15 minutes.
Remove from oven and allow to cool for a few minutes on the baking sheet, then
transfer cookies to a wire rack to cool completely.