Macaroni cheese

Method

1. Preheat the oven to 180°C/fan160°C/ gas 4. Cook the pasta in a large pan of boiling salted water for 8-10 minutes until almost cooked. Drain the pasta, reserving 2 tbsp cooking water. Return the pasta to the pan and stir through the reserved water. Set aside.
2. Meanwhile melt the butter in a pan, add the flour and cook for 2 minutes. Gradually stir in the milk, making a thick white sauce. Season, then add the mustard, cheeses and parsley.
3. Mix the cheese sauce with the pasta, then spoon into a 1.5 litre ovenproof dish. Top with the extra Gruyère, then bake for 20-25 minutes until golden. Rest for 5 minutes before serving.