Baked Mac and Cheese

Method

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1. 1Preheat the oven to 190 °C. Cook the macaroni in plenty of salted boiling water for 2 minutes less than the package says, so it is still firm, then drain.
2. 2Melt the butter in a large pot over medium heat, add the flour and whisk for 1-2 minutes, until it foams and smells lightly biscuity but hasn't browned.
3. 3Add the milk gradually, whisking out any lumps after each addition. Cook, stirring constantly, for 5-7 minutes, until the sauce coats the back of a spoon.
4. 4Turn off the heat. Stir in about three-quarters of the cheddar with the mustard, nutmeg, salt and pepper until the cheese has fully melted.
5. 5Fold in the drained macaroni until every piece is coated, then spread it in a buttered baking dish of about 20x30 cm.
6. 6Sprinkle the remaining cheddar and the Parmesan over the top. Toss the breadcrumbs with the melted butter and scatter them over everything.
7. 7Bake for 20-25 minutes, until the sauce bubbles at the edges and the top is golden and crisp. Let it rest for 5 minutes before serving.