Preheat your oven to 425°F (220°C) and line a baking sheet with parchment paper.
In a large mixing bowl, whisk together the flour, baking powder, and salt.
Add the cold, cubed butter and use a pastry cutter or your fingers to work it into the flour mixture until it resembles coarse crumbs.
Gradually stir in the milk, mixing gently until a soft dough forms. Do not overmix.
Transfer the dough to a lightly floured surface and knead it briefly, just until it comes together.
Pat the dough into a ¾-inch thick round and cut into 8 wedges or use a round cutter for individual scones.
Place the scones on the prepared baking sheet, spacing them slightly apart.
Bake for 12-15 minutes, or until golden brown and puffed up.
Let cool slightly, then serve warm with butter, jam, or clotted cream.