Preheat oven to 425°F and line a baking sheet.

Mix flour, baking powder, and salt. Cut in butter until crumbly.

Stir in buttermilk, gently form dough, cut biscuits, and bake 12–15 minutes.

Brown sausage in a skillet until fully cooked.

Sprinkle flour over sausage, stir, then slowly add milk.

Simmer until thick, season with salt and pepper, and serve over biscuits.