Preheat the oven to 400°F (200°C).
Pumpkin puree has a high water content, which can affect the texture of your scones. To avoid this, blot the pumpkin with a paper towel for about 15 seconds to remove any excess liquid before adding it to the dough.
In a large bowl, whisk together the flour, baking powder, cinnamon, nutmeg, cloves and salt. Add the cold butter and cut it into the dry ingredients until the mixture resembles coarse crumbs. In a separate bowl, whisk together the pumpkin puree, maple syrup, heavy cream, egg, and vanilla extract. Gradually fold the wet ingredients into the dry mixture until combined. Be careful not to overmix.
Turn the dough onto a lightly floured surface and gently pat it into a round, about 1 inch thick. Cut the dough into 8 triangles.
Once shaped, refrigerate the scones for 30-45 minutes. This is a key step for ensuring the scones hold their shape and rise perfectly, giving them that signature light, flaky texture.
Bake for 20-25 minutes or until the edges are golden brown. Remove from the oven and let them cool on a wire rack.
In a small bowl, whisk together powdered sugar, maple syrup, and milk or cream. If the glaze is too thick, add a small amount of milk until it reaches the desired consistency. Drizzle the glaze over the warm scones for a sweet finishing touch.