Baked Macaroni and Cheese

Combine flour, salt and pepper in a bowl. Heat the margarine in a pan and add in the flour mixture. Stir for 30 seconds and pour in the milk and cream and stir well. Bring to the boil. Reduce heat to moderate and cook for about 10 minutes. Add in the cheese, a little at a time. Keep cooking over a moderate heat till all the cheese has melted. Add in the macaroni and toss so that it gets evenly coated with the cheese sauce. Take off fire. Place the coated macaroni in a baking dish and spread the breadcrumbs evenly on top. Bake at 400 deg. F till the top turns a golden brown.