Tips for making the world's greatest macaroni and cheese?

To make the world's greatest macaroni and cheese, start with high-quality pasta, like cavatappi or elbow macaroni, for better sauce adherence. Use a blend of cheeses—sharp cheddar for flavor, Gruyère for creaminess, and a touch of Parmesan for depth. Create a rich cheese sauce by making a roux with butter and flour, then gradually whisk in milk or cream, adding the cheese until melted and smooth. For added texture, top with breadcrumbs mixed with melted butter and bake until golden and bubbly.