Remove your butter from the freezer and cut it into your flour mixture using a pastry cutter until the mixture resembles coarse crumbs.
Add the cold milk to the flour mixture and use a spoon to stir until just combined (don't over-mix, you don't want to overwork this dough)
Prepare your gravy while the biscuits are baking.
Place sausage in a saucepan and turn heat to medium-high. Cook, crumbling the sausage as it cooks, until no pink remains. Do not drain the skillet.
(Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.)