Preheat your oven to 425°F (220°C).

Line a baking sheet with parchment paper.

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

Add the cold, cubed butter to the flour mixture. Use a pastry cutter or your fingers to work the butter into the flour until the mixture resembles coarse crumbs.

Pour in the milk and stir gently until just combined.

On a floured surface, roll out the dough to about 1-inch thickness.

Use a cookie cutter or glass to cut out biscuit shapes from the dough.

Place the biscuits on the prepared baking sheet, leaving some space in between.

Bake in the preheated oven for 12-15 minutes, or until golden brown.