
An extra-sharp raw-milk cheddar from England is the perfect counterpoint to the sweet sautéed leeks in this upscale twist on mac and cheese.
Test-kitchen:
Unlike classic mac and cheese, which is thickened by a roux (a flour and butter mixture), this one uses eggs to make a rich, gooey custard. But be careful when adding the hot cheese sauce to the eggs; youll need to whisk the sauce in slowly so that the eggs dont curdle.
