Fish and chips

Name: Fish and chips
Prep time: 30 min
Cook time: 30 min
Total time: 1 h
Cuisine: British
Ingredients: beef dripping or oil, for deep frying (beef dripping is used in the traditional method and gives a far better flavour, but sunflower or vegetable oil will work just as well); 4x175g/6oz thick cod or haddock fillets, taken from the head end rather than the tail end of the fish; 225g/8oz self-raising flour, plus extra for dusting; salt and freshly ground black pepper; 300ml/10fl oz fridge-cold lager; 6-8 large floury potatoes, such as maris piper, king edward, desiree (depending on how hungry you are)