Chef John's Pumpkin Scones

Details

Ingredients

• 1 ¾ cups all-purpose flour
• ¼ cup white sugar
• 1 tablespoon baking powder
• ¼ teaspoon baking soda
• ¼ teaspoon salt
• 6 tablespoons cold, unsalted butter, cut into pieces
• ½ cup pumpkin puree
• ⅓ cup buttermilk
• ⅓ cup toasted pine nuts
• 2 tablespoons all-purpose flour, or more as needed
• 1 egg
• 1 teaspoon milk
• 1 teaspoon white sugar