Slow Cooker 4-Ingredient Mac and Cheese Ingredients 16 ounces (1 pound) elbow macaroni, uncooked 4 cups whole milk 4 tablespoons salted butter, cut into pieces 4 cups (about 16 ounces) shredded sharp cheddar cheese, divided Directions Lightly grease the inside of a 4- to 6-quart slow cooker with a bit of butter to help prevent sticking. Add the uncooked elbow macaroni to the slow cooker and spread it into an even layer. Pour in the whole milk, then add the salted butter pieces and 3 cups of the