…audit reveals Britain’s sweet treats can be more calorific than a cheeseburger By CHLOE LOUISE Plain, chocolate-coat­ed or dotted with dried fruit. While picking a biscuit based on preference may seem to be the obvious ap­proach, your choice could have more calories than a McDonald’s Cheeseburger.That’s according to a huge MailOnline audit for Na­tional Biscuit…