Step 1: Chill butter and buttermilk — cold ingredients create flaky biscuits.

Step 2: Whisk all dry ingredients together in a large mixing bowl.

Step 3: Cut in butter using a pastry cutter or fork until mixture looks like coarse crumbs.

Step 4: Pour in buttermilk and stir until just combined — the dough should be soft and slightly sticky.

Step 5: Gently knead and fold the dough to create layers.

Step 6: Cut out biscuits with a sharp cutter, pressing straight down.

Step 7: Arrange on a baking sheet and brush with buttermilk.

Step 8: Bake at 450°F until golden and puffed, then serve warm.