BILLED a guilt-free trip of indulgence and a step into the future of food, the Moving Mountains B12 Burger is one hundred per cent plant and zero per cent cow - and you can try one in Swindon.

Two Marston's pubs, the Bayberry in East Wichel and Abbey Meads on Elstree Way, have welcomed in this brave new world of plant-based cuisine, serving up the B12 Burger to curious carnivores and committed plant eaters alike.

This breakthrough in vegan cuisine is reckoned to be unlike any other veggie burger - because it looks, smells and tastes just like beef. What is even more extraordinary, the B12 Burger has a juicy centre which appears to 'bleed', just like a rare-cooked meat version.

Made of plants, it contains no cholesterol, antibiotics or hormones. The main ingredients are coconut oil which provides a fatty satisfying consistency, beetroot juice for the ‘bleed’ at the centre of the patty, and plant-proteins and mushrooms for succulent texture, plus herbs, spices and vitamin B12.

Our intrepid Adver reporters visited the Bayberry to see if the B12 Burger could really live up to the hype.

Sarah: vegan

I had high hopes after all the promotion, because a really good beef substitute might encourage more people to reduce their intake, which would be good for animals and the environment. The photos certainly looked impressive.

When I tried the B12 Burger for myself, it was fine. The burger has a pleasant savoury taste and a good texture. It certainly didn't bleed, nor did it taste exactly like meat, but it wasn't far off.

Combined with the pulled jackfruit sauce, slice of tomato and bun, it was a tasty and enjoyable meal - but I've had better veggie burgers and I wouldn't say it was the game changer we'd been led to expect.

Aled: carnivore

For someone who enjoys eating meat, I’m pretty onboard with vegetarian and vegan food: spaghetti ali oli, patatas bravas, falafel, a chip butty (no butter),all right up there in my faves list.

My point is I’m not one of those who insists that non-meat food replicates the carnivore experience as close as possible.

But when Sarah asked me to try the B12 vegan burger (“It bleeds” she said, and there’s an offer), I was intrigued.

First thing to say is that it doesn’t bleed. At least not by the time it got to me. I’d say it was positively medium, well.

It most resembles meat in the texture in the mouth - it had the right sort of yielding quality. Blindfolded I might have thought it was real meat – but I’d have also thought it wasn’t the tastiest meat.

It was very nice, better than that actually, but I don’t think it’s an accident the burger comes covered in ‘pulled jackfruit’ full of sweet and spicy flavours and is accompanied by a punchy coleslaw.

But if I was in the mood for a burger, and for whatever reason didn’t want meat, I’d be very happy with the B12 burger as an alternative.