Preheat the oven to 375°F. Line a large baking sheet with parchment paper or a silicone baking mat and set aside.
Grate butter (I use a box grater) or cut into small cubes and place butter in the freezer. Remember, the colder your butter – the better!
In a small bowl whisk heavy cream, the egg, blotted pumpkin (see note), brown sugar, and vanilla extract together. Set aside.
In a large bowl whisk the flour, baking powder, cinnamon, pumpkin pie spice, and salt together. Add the cold grated/cubed butter and use a pastry cutter or fork to cut it into the dry ingredients until you have small pea-sized crumbs.
Add the wet ingredients to the dry ingredients and mix until combined. Do not overmix. With floured hands, work the dough into a ball as best you can and transfer it onto a floured work surface.
Press into a neat 8-inch disc and with a very sharp knife, cut the dough into 8 equal-sized pieces. Place them on the prepared baking sheet, making sure to leave a little room between each one.
Brush the extra heavy cream on top of the scones.
Bake scones for 15-18min or until lightly browned.
Remove from the oven and allow to cool.