With the number of vegans in Great Britain quadrupling between 2014 and 2019, it’s fair to say there is a definite market for vegan-friendly foods these days. One sweet treat that vegans may well have thought was out of reach is the perfect plant-based marshmallow, which until now was only a pipe dream. Enter: Marks & Spencer, who have taken it upon themselves to develop a bag, which fans are already going wild for.