Food writer at Eating With Tod Toby Inskip said: "It has made something that was always quite dry and boring, exciting and aesthetically pleasing.
“Smashed burgers bring a whole new experience to the table, with its added crispiness and better taste, it’s a different league to old school burgers.”
Restaurants such as Supernova, Bleecker Burger, Black Bear Burger and Beefy Boys have developed cult-like followings and won praise from industry-leading chefs.
Molly Hutchinson, who runs meat festival Meatopia, said: “What we’re seeing at the moment is a rise in the cult burger brands.
"It’s great to see more burger restaurants with strong ethos around sustainable, responsibly sourced meat.
"I think we can all agree we should be eating more vegetables.
"But heading to your local butcher and buying locally sourced, grass fed beef burgers is more sustainable than grabbing an over processed meat alternative."
When asked if vegan smashed burgers were in competition with their real meat counterparts, Mr Inskip said: “They don’t really work, it’s alright, but the whole point is to get the crisp edge and charred quality, but with a vegetable you just don’t get that caramelisation.”