01 - Boil elbow macaroni in a large pot of salted water until al dente. Drain thoroughly and set aside.
02 - In the same pot over low heat, melt butter. Add milk and cream cheese, stirring constantly until a smooth sauce forms.
03 - Add shredded cheddar cheese to the sauce. Stir continuously until cheese is completely melted and sauce is homogenous.
04 - Return drained macaroni to the pot. Gently fold to coat pasta evenly in cheese sauce. Season with salt and freshly ground black pepper as desired.