Preheat your oven to 450 degrees F. Grease your baking sheet with butter or line it with parchment paper.
In a large mixing bowl, whisk the flour, baking powder, sugar, and salt together thoroughly.
Add in the cubes of COLD butter and cut in using a pastry blender, a fork, or your hands. Cut in the butter until the flour mixture resembles course crumbs.
Next, add in the milk, 1/4 c. at a time. Mix the milk into the flour with your fingertips or a fork as you add it in. Add milk until your arrive at a dough that is hydrated, slightly sticky, and slightly crumbly. You should be able to easily press the dough together into a ball with your hands.
Gently press the ball of dough out into a round that is 3/4" tall.
Using a drinking glass, mason jar, or circular biscuit cutter (3.25" diameter), cut out rounds of the dough and place them on the baking sheet.
Bake the biscuits for 9-15 minutes until lightly golden brown on the top. The baking time will depend on how large you have made your biscuits.
Enjoy the biscuits warm with butter, jam, or honey!