The pizza giant, which at the height of its powers opened a new branch every week, has now collapsed into administration – and Salt Bae is on his knees, says James Moore . But it’s not just struggling restaurants that are in trouble T ime was when the red Pizza Hut sign was a familiar sight on every high street in the country. With its unpretentious, American-diner vibe, it became a household name by offering somewhere hearty families could eat out at, tucking into large-pan pizzas with stuffed