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 until well combined.
03 - Add cold butter cubes. Use a pastry cutter or your fingers to work the butter into the flour mixture until it resembles coarse crumbs.
04 - In a small bowl, whisk together heavy cream, egg, and vanilla extract until blended.
05 - Pour the wet mixture over the flour mixture. Stir gently with a spatula until just combined. Do not overmix.
06 - Gently fold in the chopped strawberries until evenly distributed throughout the dough.
07 - Turn the dough onto a lightly floured surface. Pat into a 1-inch-thick round. Cut into 8 wedges and transfer to the prepared baking sheet, spacing evenly.
08 - Brush the tops of each scone with a little extra heavy cream. Sprinkle generously with coarse sugar if desired.
09 - Bake for 16 to 18 minutes, or until the tops are golden brown and a toothpick inserted into the center comes out clean.
10 - Let the scones cool on the baking sheet for 5 minutes, then transfer to a wire rack. Serve warm or at room temperature.