01 - Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
02 - In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, salt, and ground cinnamon.
03 - Add the cold, cubed unsalted butter to the dry ingredients. Cut the butter into the flour mixture using a pastry blender or your fingertips until the mixture resembles coarse crumbs.
04 - In a separate small bowl, whisk together the heavy cream, large egg, and vanilla extract. Pour this mixture over the flour and butter combination. Gently mix until just combined; avoid overworking the dough.
05 - Turn the dough out onto a lightly floured surface. Pat it into a 9-inch (23 cm) circle, approximately 3/4-inch (2 cm) thick.
06 - In a small bowl, combine the 2 tablespoons of granulated sugar and 1 teaspoon of ground cinnamon designated for the filling. Sprinkle this mixture evenly over the surface of the dough circle.
07 - Gently fold the dough circle in half, then pat it into a 7-inch (18 cm) circle.
08 - Cut the dough circle into 8 equal wedges. Arrange these wedges on the prepared baking sheet.
09 - Brush the tops of the scones with a small amount of heavy cream. In another small bowl, mix the 1 tablespoon of granulated sugar and 1/2 teaspoon of ground cinnamon for the topping, and sprinkle this mixture over the scones.
10 - Bake for 16 to 18 minutes, or until the scones are golden brown. Remove from the oven and allow them to cool slightly before serving.