In a small bowl mixed together 1 tablespoon of granulated sugar with 2 teaspoons of pumpkin spice. Set aside. Place a sheet of parchment paper on a large sheet pan.

Place softened unsalted butter, powdered sugar, maple syrup, pumpkin spice, and kosher salt in a medium mixing bowl. Use a hand mixer to combine until fluffy. Place in a small ramekin and set aside.

In the bowl of your food processor combine all-purpose flour, the remaining sugar, baking powder, baking soda, kosher salt, and one teaspoon of pumpkin spice. Add in 8 tablespoons of cold unsalted butter that has been cut into small cubes. Pulse for 4 to 5 one second bursts in the food processor.

Dump your flour mixture into a large mixing bowl. Add in ¾ cup of buttermilk and mixed to a cohesive dough. If you have a lot of dry mixture at the bottom of the bowl, add up to 2 tablespoons more buttermilk, one tablespoon at a time, until the dough comes together. (you may not need the full 2 tablespoons)

Dump onto a lightly floured surface and shape into a square. Use a bench scraper or knife to cut into four equal pieces. Move one of your quarters to the side and sprinkle your pumpkin spice sugar on top of the other three squares.

Stack the three squares on top of each other, topping it with the un-sugared piece. Press down gently into a large square and cut into quarters. Roll out to ½ inch thickness and use a round cutter to cut out biscuits.