Let’s dive into the process, shall we? Each step is crafted to ensure a delightful outcome that pays homage to the many meals shared in our family kitchen.

1. Start by cooking the pasta in a large pot of salted boiling water until al dente. Drain and set aside.
2. In a separate saucepan, melt the butter over medium heat. Stir in the flour and cook, whisking constantly, until it forms a golden paste, about 1-2 minutes.
3. Gradually whisk in the milk and cream, continuing to whisk until the mixture is smooth and begins to thicken, about 3-4 minutes.
4. Reduce the heat to low and add the cheddar and Parmesan cheeses, stirring until completely melted and the sauce is creamy.
5. Season the sauce with salt, pepper, nutmeg, and garlic powder. Taste and adjust seasonings as needed.
6. Combine the cooked pasta with the cheese sauce, stirring gently to coat every piece.
7. If you fancy a crispy topping, sprinkle breadcrumbs over the top before placing the dish under the broiler for 2-3 minutes, until golden and bubbly.