When I was dating my late husband I ask him to dinner and I served mac and cheese, and when he was leaving he ask to kiss me good night and I said yes, and after he kiss me his response was that was a smack with cheese, for over 20 years he always introduce my mac and cheese as "Smack and Cheese" and all my family and friends has enjoyed it ever since.
1cook macaroni according to package in (1) saucepan
adding a tsp spoon of salt to water
2In (2) saucepan pour half and half along with the can of eveporate milk and all of the cheese on low heat,stirring continously until it has melted,do it slowly as not to burn cheese
3Drain cooked macaroni and put into oven proof dish
(I buttered my dish first) and then add 1/2 stick of butter and pour the cheese sauce over the macaroni and add sour cream stir until well mixed and then sprinkle bread crumbs over the top *prepared crumbs)
4Bake in oven on 350'degrees for 30 minutes covered lightly with foil.