01 - Preheat your oven to 400°F. Line a baking sheet with parchment paper for easy cleanup and to prevent sticking.
02 - In a spacious mixing bowl, thoroughly whisk together the all-purpose flour, granulated sugar, baking powder, and salt until uniformly combined.
03 - Introduce the cold, cubed unsalted butter to the dry mixture. Cut the butter into the flour using a pastry cutter or your fingertips until the mixture achieves a coarse, crumbly texture resembling small peas.
04 - In a separate bowl, whisk together the heavy cream, large egg, and pure vanilla extract until well combined. Gently pour this wet mixture over the dry ingredients and mix just until a cohesive dough forms, taking care not to overmix, which can result in tough scones.
05 - Carefully fold in the fresh raspberries and white chocolate chips into the dough, exercising caution to prevent crushing the delicate berries.
06 - Transfer the dough onto a lightly floured work surface. Gently pat the dough into a 1-inch thick circle. Using a sharp knife or pastry cutter, divide the circle into 8 equal wedges. Carefully transfer these scone wedges to the prepared baking sheet.
07 - Lightly brush the tops of the scone wedges with additional heavy cream to promote a golden-brown finish and add a subtle richness during baking.
08 - Bake the scones for 16 to 18 minutes, or until their tops are beautifully golden brown and they are cooked through. Allow them to cool slightly on the baking sheet before serving for optimal texture and flavor development.