In a large Iron or heavy skillet, crumble and cook pork sausage until browned. Drain and set aside. Reserve 1 tablespoon of grease from sausage to remain in pan.

Melt butter in the same pan with reserved pork drippings. Once melted and combined, add in flour, salt and pepper. Mix well into melted butter and reserved drippings. This will form a paste or ball. Cook flour mixture for one minute, stirring the whole time.

Once the flour smell has gone, drizzle in milk, taking care to whisk mixture the entire time to break down the roux paste into the milk. Bring to a boil over medium to high heat and cook until desired thickness. This should only take 3 to 5 minutes.

Lower heat to simmer and add cooked sausage back into gravy. Simmer for 3 minutes or so until sausage is heated through. Taste to make sure it doesn't need more salt or pepper to your taste.

Serve over Homemade Buttermilk Biscuits.