First it was Pizza Hut's hot dog-stuffed crust, now there's Burger King's Bacon Sundae: How many calories can fast food lovers take?

It seems fast food outlets are doing their best to outdo each other in loading even more calories onto their offerings.

First there was the hot dog-stuffed crust pizza served up by Pizza Hut - an eye-popping 270 calories a slice.

Now Burger King have come up with an eye-watering rival product of their own that combines sweet and savoury: the Bacon Sundae.

Stomach-crunching: The new Burger King Bacon Sundae, which will go on sale in stores in Nashville, Tennessee

The new product by the fast food giant boasts vanilla ice cream, slathered in fudge sauce and topped with chunks of cooked rashers of salty bacon.

It is currently being tested in Burger King, Nashville, Tennesse, but its popularity will be measured in a selection of their stores across the city to gauge appetite for the product.

The $2.49 dessert is one of a series of new releases by the chain, including sweet potato fries, Caesar salads and strawberry and banana smoothies.

A pulled-pork sandwich and frozen lemonade are also being tested out in Nashville .

The chain's focus on new products is part of a $750million makeover aimed at targeting new customers.



It is not the first time egg and bacon have been fused in culinary offerings.

Chef Heston Blumenthal notoriously devised an egg and bacon ice cream, which appears on the tasting menu for his Fat Duck restaurant in Bray, Berkshire.

Burger King's latest treat is part of a strategy to boost struggling sales in a bid to rival market leader McDonald's.

Pizza dog: Pizza Hut's new hot dog-stuffed crust will go on sale to UK customers only, but be warned: it's 270 calories-a-slice

Burger King: The fast food chain is following up its bacon-flavoured milkshake with a Bacon Sundae

Its bacon milkshake, launched in February, was loaded with between 773 and 1084 calories, depending on the cup's size.

Earlier this month, Burger King, which is the number three burger chain behind McDonald's and Wendy's, said it would revamp its menu to be healthier, launching ten new items such as smoothies and wraps.

Rival US stores have used bacon with sweet products, with Denny's rolling out a bacon maple sundae and Jack In The Box adding a bacon-flavoured milkshake.



But the new products are unlikely to appeal to everyone.



Nutritionists have slammed Pizza Hut's invention as 'completely unnecessary', warning that the increased levels of salt and saturated fat will make it more unhealthy than a standard pizza.

The retailer has decided to roll out the stomach-swelling offering in the UK instead of the US market.

British pizza lovers will be able to order the dish for delivery only, for the next six weeks.

Since Pizza Hut became the first company to stuff their crusts, there have been a string of copycat varieties, including those with cheese, BBQ, cheesy bite versions and even the garlic bread stuffed crust.