This elevated macaroni and cheese recipe combines penne pasta with a rich, complex cheese sauce featuring a blend of extra-sharp cheddar, creamy Mt. Tam, medium cheddar, and Parmesan. Savory applewood smoked bacon, sweet onion, and garlic infuse the sauce with depth, while a pinch of cayenne and crispy fried onions deliver balanced flavor and texture for a sophisticated comfort dish.
For the béchamel, ensure the flour and butter roux cooks for at least 2-3 minutes to eliminate any raw flour taste before adding milk. Introduce the milk gradually, whisking constantly to prevent lumps, and bring to a gentle simmer to thicken. When incorporating the cheeses, remove the sauce from direct heat and add them in batches, stirring until fully melted and smooth; this prevents the cheese from seizing or becoming oily. Cooking the penne slightly al dente is crucial, as it will continue to cook when mixed with the hot sauce, preventing mushiness. Don't skip the cayenne; it subtly enhances the cheese's flavor without adding heat. The crispy fried onions provide a vital textural contrast.