Biscuits and Sausage Gravy

I was just in the mood for this and had actually never made before. Turned out yummy and definately hit the spot!
SAUSAGE GRAVY
1 pound ground pork sausage
2 tablespoons butter
1/4 cup flour
4 cups milk
Salt & pepper to taste

In a large skillet over medium heat, saute the sausage until browned. (Drain) Stir in the butter until well blended, then stir in the flour until mixture is thick and pasty. Reduce heat to medium low and slowly add the milk, stirring constantly, until mixture is thick and bubbly and to desired consistency. Season with salt and pepper to taste. Serve with biscuits.