01 - Preheat your oven to 400°F (200°C). Line a standard baking sheet with parchment paper for easy removal.
02 - In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, and salt until well combined.
03 - Add the cold, cubed unsalted butter to the dry ingredients. Use a pastry cutter or your fingertips to work the butter into the flour mixture until it resembles coarse crumbs.
04 - In a separate small bowl, whisk together the heavy cream, large egg, and pure vanilla extract. Pour this liquid mixture over the dry ingredients and mix gently with a spoon or spatula until just combined. Be careful not to overwork the dough, as this can lead to tough scones.
05 - Gently fold in the fresh raspberries and white chocolate chips or chunks. Exercise care to avoid crushing the delicate raspberries during this step.
06 - Turn the scone dough out onto a lightly floured surface. Pat it into a circular shape, approximately 1 inch thick. Using a sharp knife, cut the circle into 8 equal wedges. Carefully transfer these wedges to the prepared baking sheet.
07 - Lightly brush the tops of the scone wedges with a small amount of additional heavy cream. This will help them achieve a beautiful golden-brown finish.
08 - Bake the scones for 16 to 18 minutes, or until their tops are golden brown and a toothpick inserted into the center comes out clean. Allow them to cool slightly on the baking sheet before serving.