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.
03 - Add cold, cubed butter to dry ingredients and cut in with a pastry cutter or fingers until mixture resembles coarse crumbs.
04 - Whisk together heavy cream, egg, and vanilla extract in a separate bowl.
05 - Pour wet ingredients into dry mixture and stir until just combined.
06 - Gently fold chocolate chips into the dough.
07 - Turn dough onto a lightly floured surface and pat into an 8-inch round disc about 1 inch thick.
08 - Cut the disc into 8 wedges and arrange them spaced slightly apart on the prepared baking sheet.
09 - Brush tops lightly with extra heavy cream for a golden finish.
10 - Bake for 16 to 18 minutes, or until golden brown and cooked through.
11 - Allow to cool slightly before serving.