Cook sausage in skillet leave grease in pan remove cooked sausage set aside

Melt butter in skillet on med heat, in same pan sausage was cooked

Add flour once butter begins to melt whisk together until it starts to bubble.

Add milk and whisk until starts to thicken and bubble.

Add cooked sausage continue stirring. Simmer once it begins to bubble. Let simmer until thickens to preference. Add milk to thingravy consistency to liking.