Barbecue food isn’t what it used to be. It’s not banging a burger on the disposable barbecue, or flipping sausages until almost burnt just to make sure they’re cooked, before serving in a roll oozing with ketchup or yellow mustard. Nope. Go out and see barbecue food on a menu, and expect slow cooked meats, tender rich brisket, juicy beef short rib and flavoursome burnt ends. Ok, so it’s another of the American influences which has made its way over here, South-West American to be exact, and this style of cooking is AWESOME. St. Bart’s Brewery, in Smithfield, is one of the restaurants on the London food scene which has jumped on the trend, but added their own little touch – all of the meat…