Pre-heat oven to 400-degrees F. Line a baking sheet with parchment paper and set aside.
Whisk dry ingredients (gluten-free flour, almond flour, baking powder, baking soda, cinnamon, pumpkin spice, and coconut sugar) together in a large mixing bowl.
Using a box grater, grate the frozen butter. Add butter to the dry ingredients. Using a pastry cutter, or back of a fork, cut the butter into the flour mixture until small butter crumbs form.
In a separate small bowl, whisk together the egg, pumpkin puree, vanilla, and milk. Add this to the flour/butter mixture and stir with a wooden spoon until a dough forms (you may need to use your hands to fully mix the ingredients together). Note: dough will be slightly sticky!
Using your hands, shape the dough into a large ball (coat your hands in gluten-free flour if needed). Transfer dough to a floured surface and then sprinkle dough ball with additional gluten-free flour. Shape the dough into a disc that is roughly 6" wide and ¾" high. Use a sharp knife to cut the dough into 8 equal triangles.
Transfer the dough triangles to the prepared baking sheet, leaving about an inch between each scone. Brush each scone with additional milk.
Bake for 18-20 minutes, or until scones are golden brown around the edges and are fully set in the center.
Allow to cool. If adding glaze, drizzle with glaze after they have cooled. Enjoy!