Preheat your oven to 425°F (220°C).
In a large bowl, whisk together the flour, baking powder, and salt.
Add the cold butter to the flour mixture, using a pastry cutter or your fingers to mix until crumbly.
Pour in the milk gradually, stirring until just combined.
Turn the dough onto a floured surface, kneading gently for about 30 seconds.
Roll the dough to about 1-inch thickness.
Use a biscuit cutter to cut out rounds and place on a baking sheet.
Gather excess dough, re-roll, and cut more biscuits.
Bake in the preheated oven for 15-20 minutes or until golden brown.
Remove from the oven and let cool slightly before serving.