Preheat oven to 350° F.

In large skillet, cook sausage until fully cooked. When cooked, do not drain. 

Add butter, and cornstarch, stir until cornstarch is dissolved into the sausage. 

By this time you'll want to start putting your biscuits on a baking sheet and pop them in the oven. Bake for 15-20 minutes or until golden. 

Once done, slowly begin to add the milk to the gravy mixture. 

Add about a cup each time continuously stirring. Season to taste.

Pour your gravy on your biscuits to serve.