01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Whisk together flour, sugar, baking powder, and salt in a large bowl.
03 - Add cold butter and cut into flour mixture with pastry blender or fingertips until mixture resembles coarse crumbs.
04 - Whisk cream, egg, and vanilla extract in a separate bowl.
05 - Pour wet ingredients over flour mixture. Stir gently until just combined; avoid overmixing.
06 - Gently fold in raspberries and white chocolate, taking care not to crush the berries.
07 - Turn dough onto lightly floured surface. Shape into a 7-inch round, approximately 1-inch thick.
08 - Cut into 8 wedges and place on prepared baking sheet, spacing apart.
09 - Brush tops with extra cream and sprinkle with coarse sugar if desired.
10 - Bake for 16-18 minutes until golden brown. Cool slightly before serving.