01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - In a large bowl, whisk together flour, sugar, baking powder, and salt until evenly mixed.
03 - Add cold butter cubes to the dry ingredients and cut in using a pastry cutter or fingertips until mixture resembles coarse crumbs.
04 - In a separate bowl, whisk together heavy cream, egg, and vanilla extract until combined.
05 - Pour wet ingredients into dry ingredients and gently stir until just combined, taking care not to overmix.
06 - Fold in semisweet chocolate chips carefully to distribute them evenly without overworking the dough.
07 - Turn dough onto a lightly floured surface and pat into an 8-inch round approximately 1 inch thick.
08 - Slice the dough into 8 wedges and arrange them evenly spaced on the prepared baking sheet.
09 - Brush the tops of the wedges lightly with additional heavy cream to promote browning.
10 - Bake for 16 to 18 minutes or until golden brown. Allow scones to cool slightly before serving.