10,000-calorie 'burger within a burger,' containing 5 pounds of beef - PHOTO

Dubbed the ‘Ulti-Meatum’, the sandwich created by Corinne Clarkson, 39, in Preston, Lancashire, is a cheeseburger encased in another burger and held together by two buns, also made from burgers.The dish - being sold for £20 at the Mister Eaters restaurant in the city - is modelled on a meal from The Best Burger In The World episode of Cartoon Network hit The Regular Show.In the show, the characters of Mordecai, a Blue Jay and a raccoon named Rigby do everything they can to try and eat the burger, which is so good it can only be sold to one customer every 100 years.But fans can now get their hands on a real-life version of the calorific creation for free - only if they dare to take on the challenge of finishing it in one.Anyone who attempts the Man v. Food-style challenge will have to consume five pounds of beef, as well as six slices of cheese and three whole buns.Mrs Clarkson, who runs Mister Eaters with her 54-year-old husband John, said: ‘I saw a few people had tried to make it on YouTube but they were terrible.‘I wanted to do it properly and it took me four attempts to get it right. It had to be perfect and luckily on the fourth time it was. If anybody wants to have a go at eating this, they can try.'I wanted to do it properly and it took me four attempts to get it right. If anybody wants to have a go at eating this, they can try'Corinne Clarkson‘I couldn't eat it - I haven't even been tempted yet. It's massive. There must be someone in the country who wants to try - and they're more than welcome.‘It's possibly one of the biggest burgers in the country. It's probably for the best that the show only sells the Ulti-Meatum once every 100 years because I certainly wouldn't recommend eating this every week.’It's not just those up for the eye-watering challenge who can taste the burger.  For £20, Mr Clarkson said he will also cook the sections and sell them so customers can assemble the parts at home.The former butcher, who has ran the chip shop for 25 years, made all the burgers himself using an old recipe and ordered huge buns to accommodate the meat.(dailymail.co.uk)ANN.Az