The topping was made in a similar way except that instead of breadcrumbs and butter she used the peanut butter cheese crackers! The peanut butter really enhanced the flavor and the canned milk made it richer. This recipe used the canned condensed milk, extra sharp cheddar, Jack, and Colby cheeses. Years ago, my dear departed sister gave me a recipe for the World's Best Cheese with Macaroni.
