Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a large bowl, whisk together the peanut butter, brown sugar, and eggs until well combined and smooth.
In a separate bowl, stir together the cocoa powder and gluten-free flour.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix.
Fold in your favorite chocolate chips and butterscotch chips, or omit them if you prefer.
Scoop the dough onto your prepared baking sheet. Since these cookies won't spread much, you can form them into your desired shape beforehand. Gently press down on the tops of the dough balls with a fork to create a crisscross pattern.
Bake the cookies for 10 minutes, or until the edges are just beginning to brown.
Let the cookies cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.