Line a baking sheet with parchment paper.
To make the dough: In the bowl of a stand mixer fitted with the paddle attachment, add the flour, light brown sugar, baking powder, pumpkin spice, and sea salt. Mix on low to for 2 to 3 rotations to combine the dry ingredients.
Using a large grater, grate the butter and add to the flour mixture. Don’t mix yet.
Add the pumpkin puree and milk, and mix on low to combine. You’ll have to scrape the bowl to help combine the dry ingredients, and I find it’s easier to finish combining with your hands.
Using your hands, form the dough into a round disk that is about 7-inches in diameter. Using a sharp knife, cut into 6 triangle pieces like a pie. Separate the pieces so they are spaced evenly apart.
Place the baking sheet in the fridge for 30 minutes. Preheat the oven to 400°F.
Bake for 20 to 24 minutes or until lightly golden brown on the bottoms. Allow to cool completely on the baking sheet.
To make the icing: In a medium bowl, add the powdered sugar, maple syrup, and cream cheese. Whisk until you have a smooth glaze. Using a knife or spatula, slather the glaze on top of each scone.
Store in the fridge for up to 3 days.