Preheat your oven to 400°F (200°C). This ensures that the scones bake evenly and rise properly.

Line a baking sheet with parchment paper to prevent sticking and make cleanup easier.

In a large mixing bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, ginger, salt, and sugar. This step combines the dry ingredients and ensures even distribution of the leavening agents and spices.

Add the cold, cubed butter to the dry mixture. Using a pastry cutter or fork, cut the butter into the flour mixture until it resembles coarse crumbs. This creates a flaky texture in the scones.

In a separate bowl, mix the pumpkin puree and beaten egg until well combined. This adds moisture and flavor to the scones.

Pour the pumpkin mixture into the dry ingredients. Stir gently with a spatula until just combined. Be careful not to overmix, as this can lead to tough scones.

Turn the dough out onto a lightly floured surface. Pat it into a circle about 1-inch thick. Cut into 8 wedges using a sharp knife or a bench scraper.

Transfer the scones to the prepared baking sheet, spacing them about 2 inches apart.

Brush the tops of the scones with heavy cream to give them a golden color when baked.

Bake in the preheated oven for 20-25 minutes, or until the scones are lightly golden and a toothpick inserted into the center comes out clean.

While the scones are baking, prepare the glaze by whisking together the powdered sugar, milk, and vanilla extract in a small bowl until smooth. Adjust the milk to achieve your desired consistency.

Once baked, remove the scones from the oven and let them cool on a cooling rack for about 10 minutes.

Drizzle the glaze over the warm scones before serving for a sweet finish.