In a Dutch oven, cook sausage over medium heat 8-10 minutes or until no longer pink, breaking into crumbles (do not drain). Stir in flour, pepper, sugar and salt; cook and stir 1-2 minutes. Stir in all the milk. Bring to a boil. Reduce heat; simmer, uncovered, 3-5 minutes or until thickened, stirring occasionally.