Preheat the oven to 425°F.
Freeze a stick of butter for at least 30 minutes before getting started. I usually throw a stick in the freezer the night before. Grate butter with a cheese grater and set aside.
1 stick unsalted butter, frozen then grated
Add flour, sugar, baking powder, salt, and milk to a large mixing bowl. Use a hand mixer on high to blend together until it starts to form a dough.
2 cups all-purpose flour, 1 tablespoon light or dark brown sugar, tightly packed, 1 tablespoon baking powder, 1 teaspoon salt, ¾ cup milk
Use clean hands to form the mixture into a ball. Flour a clean surface to roll out your dough. You can use your hands to flatten it or a rolling pin. Flatten it into roughly a rectangular shape about 1/2 inch thick.
Add 1/2 of the grated butter evenly on top of your flattened dough, and fold it in half to form a square. Flatten it out one more time, add the rest of your butter and fold again. You should be left with roughly a square, about an inch thick.
Use a cookie cutter, glass cup, or mason jar to cut your dough into biscuits.
Line your biscuits up on a lined baking sheet.
Bake for 13- 15 minutes until they start to brown on top.