Preheat the Oven: Heat your oven to 425°F and line a baking sheet with parchment paper.
Mix Dry Ingredients: In a large bowl, whisk together flour, baking powder, salt, and sugar.
Incorporate Butter: Grate the cold butter directly into the dry ingredients. Toss lightly to coat.
Add Milk: Pour in the milk gradually, stirring gently until the dough just comes together.
Create Layers: Turn the dough onto a floured surface, pat it into a rectangle, and fold it over itself 2-3 times for flaky layers.
Cut Biscuits: Use a biscuit cutter or a glass to cut out rounds. Arrange them on the prepared baking sheet.
Bake: Bake for 12-15 minutes, or until golden brown. Brush the tops with melted butter for extra flavor.