Cook macaroni in boiling water for 10 mins and then drain well.

Melt butter in a large saucepan.

Add flour all at once with a little milk, beat with a whisk, slowly adding all of the milk. Keep heat low to prevent the mixture from going lumpy.

Remove from heat and keep whisking until smooth.

Return mixture to a higher heat and bring to the boil.

Once the sauce has boiled, reduce heat and add cheese, mustard, cream and salt and pepper to taste.

Gently stir the mixture until all the ingredients are melted into the sauce and remove from the heat.

Now add the drained macaroni to the sauce and gently stir.

When all of the macaroni is covered in sauce, pour all of the mixture into an ovenproof dish.

Sprinkle over remaining grated cheese.

Cook in oven (Gas Mark 6/200°C/400F) for 20 minutes until golden brown.

Serve with warm crusty bread or steamed vegetables.