UK's biggest doughnut weighs as much as a small COW and is packed with 170,000 calories

Bakers who created the UK's biggest doughnut stuffed with 170,000 calories are now putting the giant treat on their menu.

The firm behind the monster six-stone mega snack confirmed it weighs the same as a baby calf and they say they will make more - but it will set you back £500.

Eating all the doughnut would be the equivalent of guzzling 740 Mars bars ,or 1,400 large bananas, double a man's monthly recommended intake.

Company boss Marc Brough ordered the potential record-breaker for his wife Rebecca as a surprise 40th birthday gift last week.

It contains both a raspberry jam and chocolate filling as well as seven different toppings.

You can now own one for yourself - if you've got a massive sweet tooth! (Project D / SWNS)

Project D's monster doughnut measures 1.5 metres in diameter and weighs a mammoth 40kg (Project D / SWNS)

Vanilla cream, chocolate icing, chocolate fudge brownies, raspberries, golden Dairy Milk chunks and swirls of caramel cream all adorn the top of the gigantic snack.

Rebecca lauded the doughnut as the best birthday cake she's ever received and revealed that none of it went to waste despite its size.

She said it had to be wedged through a pair of double doors at her husbands office-space business where she shared it among staff.

Rebecca, who lives in Nottingham, said: "It was insane. It was absolutely incredible. I couldn't believe the size of it when they brought it in.

The yummy treat weighs the same as a small cow! (Getty Images/iStockphoto)

"The doughnut was so big that they had to fully open the double doors at the Cubo office in Derby just to get it inside the room.

"It was the best birthday cake ever, and it's fantastic to think my birthday has probably become part of a UK record.

"And, amazingly, none of it went to waste.

"It was shared with everyone and was scoffed in record time. I also saved a piece for each of my children, and they loved it."

Max Poynton, operations director for Derbyshire-based bakery Project D, reckons their creation is the UK's biggest doughnut cake by a 'long way'.

He said: "We're over the moon to have been invited to play such a big part in both Rebecca's special birthday.

"Our design and bakery teams definitely came up trumps with Rebecca's monster doughnut cake.

"As far as we can find out, it's the UK's biggest doughnut by a long way."