Preheat oven to 425°F (220°C). Prepare a baking sheet by lining it with parchment paper.

In a mixing bowl, combine flour, baking powder, sugar, and salt.

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

Stir in the milk until the dough comes together.

Gently fold in the blueberries.

Turn the dough out onto a floured surface and roll it out to 1 inch thick.

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

Bake for 15-20 minutes or until golden brown.

Remove from the oven and let cool for a few minutes before serving.