Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.

In a mixing bowl, whisk together the flour, baking powder, sugar, and salt.

Cut in the cold butter until the mixture resembles coarse crumbs.

Stir in the milk until just combined, then gently fold in the blueberries.

Turn the dough out onto a floured surface, knead lightly, then roll out to about 1-inch thickness.

Cut out biscuits using a round cutter and place on the prepared baking sheet.

Bake for 15-20 minutes or until golden brown on top.

Remove from the oven and let cool slightly before serving.