01 - Heat the oven to 400°F and line a baking sheet with parchment paper.
02 - In a large bowl, whisk together flour, sugar, baking powder, and salt until evenly blended.
03 - Incorporate cold, cubed butter into the dry mixture using a pastry cutter or fingertips until texture resembles coarse crumbs.
04 - In a separate bowl, beat together milk, egg, and vanilla extract until combined.
05 - Pour wet ingredients into dry and stir gently until just combined; avoid overmixing.
06 - Evenly distribute the chocolate chips by folding them into the dough carefully.
07 - Transfer dough to a lightly floured surface and pat into a 1-inch thick round.
08 - Cut the dough into 8 wedges and arrange them spaced apart on the prepared baking sheet.
09 - Lightly brush the tops of each wedge with extra milk to promote browning.
10 - Bake in the preheated oven for 16 to 18 minutes until golden brown and cooked through.
11 - Let scones cool slightly; serve warm or at room temperature accompanied by clotted cream.