Brown sausage until sausage is cooked. Crumble into small pieces. Drain excess grease and set aside.

Melt butter and whisk with flour over medium heat. Before it becomes too "pasty" whisk in the half and half.

Whisk continually while adding sugars, garlic, salt, pepper, red pepper flakes, and minced basil.
Whisk until thickens. Add more flour if needed. If it's too thick, add more half and half. Add sausage at the end.