A young Thai woman tackles Burger King's new cheeseburger - with a makeshift double of 40 slices.

Food fanatic Pinyada Yimyam opened up the buns and crammed the U.S. cheese into one, taking the calories up to around 5,000.

Staff then warmed the burger for her so the cheese melted.

She says in the video: 'I'm a slave to marketing, so here I am going to order the real cheeseburger. 'It's delicious. You can also ask them to heat it so it melts and look like this

'This burger is about 2,300 calories, far beyond the healthy limit. But if you're a cheese lover make sure you come eat one.'

The Thai operator of the U.S. fast food chain announced that the 'real cheeseburger' was available at its outlets nationwide from Sunday, July 9.

The glorified cheese sandwich costs 109 THB (around 3.1 USD) - slightly cheaper than a regular meat cheeseburger which costs 129 THB (3.7 USD).

An online ad for the 'real cheeseburger' posted by Burger King Thailand reads: 'Not for fun, this is for real! Real cheeseburger from Burger King! Carrying up to 20 slices of American cheese! Price is 109 Baht.'

Curious customers flocked to stores to sink their teeth into the gooey treat, though some of them said the burger was 'too intense'.

Aside from the real cheeseburger, Burger King Thailand also offers salmon katsu burgers to cater to local palettes.