I can't resist this White Cheddar Macaroni and Cheese. SugarThree: Pasta + cheddar cheese + milk Directions Preheat oven to 350°F. Cook macaroni pasta per package instructions. ... In a medium saucepan on medium heat, add butter and cook until melted. Remove saucepan from heat and add flour. ... Return saucepan to medium heat and add milk and stir to combine. Heat mixture until Milk is hot but not boiling.