Henry Firth and Ian Theasby, who scored a number one bestseller with their debut cookbook, will launch their newest tome at the event in April
The event will feature more than 40 food vendors, live acts, and talks by thought leaders including BOSH!, Serena Lee, and Danyl Earth
Attendees have been promised top 'foodie goodness'
The event was highly popular with London vegans
'Vegan Nights' will be open for one night only on September 28
