Heston Blumenthal ditches bechamel for chicken stock to fix mac and cheese

Tools and Essential Pantry Staples

To execute this technique, you will need a heavy-bottomed saucepan, a whisk, and a deep ovenproof baking dish. The ingredient list shifts away from traditional milk and flour. Instead, gather high-quality Chicken Stock, dry white wine, Gruyere, and—surprisingly—American Cheese. You will also need cornflour to act as a stabilizer and Panko breadcrumbs for a superior textural topping.

Building the Infused Liquid Base

Begin by simmering chicken stock with rosemary, thyme, and black peppercorns for 25 minutes to build a foundational savoriness. Simultaneously, reduce the white wine by half until it reaches a balance of sweetness and acidity. This acidic hit is crucial; it cuts through the eventual fat of the cheese, ensuring the final plate doesn't feel overly cloying. Cook your macaroni in salted water only until very al dente, as it will finish absorbing moisture in the oven.

The Science of a Stabilized Cheese Sauce

Rather than making a roux, coat your grated Gruyere and sliced American cheese directly in cornflour. Whisk this mixture into the warm stock-wine reduction. The cornflour prevents the sauce from splitting and provides a glossy, velvety sheen that flour-based sauces lack. For a final layer of brightness, temper Cream Cheese and Dijon Mustard into a small amount of the sauce before folding the slurry back into the main pot.

Texture and Troubleshooting

To ensure a perfect finish, toss the pasta into the sauce while it still looks "over-moist." The starch will continue to hydrate during the bake. Avoid the common mistake of overcooking the pasta on the stovetop to get a crispy top; instead, rely on a herb-flecked brown butter panko topping. Bake at 180°C for 15-20 minutes until the edges bubble and the crust turns golden, preserving the integrity of the noodles while achieving that essential crunch.