01 - Bring a large pot of salted water to a boil. Add elbow macaroni and cook according to package instructions until al dente. Drain and set aside.
02 - In a saucepan over medium heat, melt the unsalted butter. Stir in milk, sour cream, salt, black pepper, and paprika; heat gently until warmed through.
03 - Gradually add shredded sharp cheddar cheese to the saucepan, stirring continuously until the cheese is fully melted and the sauce is smooth.
04 - Add the drained macaroni to the cheese sauce, mixing thoroughly to ensure all the pasta is evenly coated.
05 - Serve hot, garnished with additional cheese or a sprinkle of paprika if desired.