Macaroni cheese

Ingredients 250g/9oz macaroni 40g/1½oz butter 40g/1½ plain flour 600ml/1pint 1½fl oz milk 250g/9oz grated cheddar 50g/2oz grated parmesan Preparation method Cook the macaroni in a large saucepan of boiling salted water for 8-10 minutes; drain well and set aside. Melt the butter over a medium heat in a saucepan slightly larger than that used for the macaroni. Add the flour and stir to form a roux, cooking for a few minutes. Gradually whisk in the milk, a little at a time. Cook for 10-15 minutes to a thickened and smooth sauce. Meanwhile, preheat the grill to hot. Remove the sauce from the hob, add 175g/6oz of the cheese and stir until the cheese is well combined and melted. Add the macaroni to the sauce and mix well. Transfer to a deep suitably-sized ovenproof dish. Sprinkle over the remaining cheddar and the parmesan and place the dish under the hot grill. Cook until the cheese is browned and bubbling. Serve straightaway.