THE UK's first meatless 'bleeding' burgers are now on the menu at Marston's pubs.

The chain is the only major pub group to offer the Moving Mountains B12 Burger in line with a growing demand for 'flexitarian' dining.

The ground-breaking British brand claims to have created a burger that sizzles, smells, tastes and bleeds like meat but is completely plant-based.

Nicola Arrow, Marston’s senior food development manager, said: “We have listened to our customers and taken the growing demand for healthier and alternative options across the pub sector as a great opportunity to develop and update our menu.

“The Moving Mountains B12 Burger is such an innovative addition to our menus that not only caters to our vegetarian and vegan customers but also to those who are trying to make more conscious health or ethical choices when eating out.

“We are especially looking forward to seeing how our meat-eating customers get on with it!”

Northwich Guardian:

The vegan burger alongside Marston's meatier option

Developed by a team of leading scientists, chefs and farmers, the B12 burger has taken more than three years and over 200 test recipes to create the final product.

And the company behind it say it will test the biggest of meat eaters with its look, smell and taste replicating that of a regular meat patty by using incredible scientific processes, natural ingredients and confidential technology.

How do they make it 'bleed'?

A spokesman added: "Just like a meat burger, the Moving Mountains B12 Burger ‘bleeds’ from the middle when perfectly cooked, but with beetroot juice instead of blood.

"The rest of the burger is made from a mix of natural ingredients including oyster mushrooms, pea protein and oats that make up 18g of plant protein per patty.

"Vitamin B12, traditionally associated with red meats, has also been added so the B12 Burger can genuinely compete with a beef burger and provide more essential nutrients by containing the RDA (Recommended Daily Allowance) of B12."

It's served on a brioche bun with vegan jackfruit, a side of Asian slaw and the classic burger sides of freshly cooked chips and onion rings.

A number of Marston's pubs are now serving this burger, click here to find your nearest one.