with people with a smile, your whole experience is different. now, finally this week, long before the cheeseburger, it was here in london that a more british fast food was invented. we re not talking about fish and chips. this is pie and mash a simple dish of a beef pie and mashed potato, served with a liquor sauce made with fresh parsley. you“d traditionally find this dish served up in one of the many pie shops that dot working class parts of the city. but they re fighting for survival and the families who run them are working hard to keep this cockney classic alive. the difference between a good pie and a bad pie? good ingredients first, if you haven t got that, it“s trying to make a silk purse out of sow“s ear, which doesn t really work. so you must have the good