6 tablespoons butter unsalted cold cut into pieces
1 teaspoon sugar white
Equipment
bowl
baking sheet
baking paper
oven
whisk
wire rack
pastry cutter
Directions
Preheat the oven to 400 degrees. Line a baking sheet with parchment paper or a silicone baking mat.
Whisk together 1 3/4 cup flour, 1/4 cup sugar, baking powder, baking soda, and salt in a large bowl until combined.
Mix butter into flour mixture using a pastry cutter until the mixture resembles coarse crumbs.
Make a well in the center of the flour-butter mixture. Stir in pumpkin puree, buttermilk, and pine nuts until just combined.
Sprinkle a work surface with 2 tablespoons flour. Turn out dough onto the floured work surface. Shape into a rectangle about 1 inch thick. Fold the rectangle in thirds, sprinkle with more flour as needed, and flatten to about 1 inch thick. Repeat 2 more times.
Cut final rectangle into 6 equally-sized squares.
Cut each square into triangles and transfer the scones to the prepared baking sheet.
Whisk egg and milk together in a small bowl. Lightly brush the top of each scone with egg wash.
Sprinkle 1 teaspoon sugar over scones.
Bake in the preheated oven until golden brown, 15 to 20 minutes.