"Day of Giving" initiative from 1.30-11pm and in conjunction with charity group Aid Convoy.
Duchess of Sussex supports charity cookbook to help raise £250K for community kitchen.
Highlights at Battersea Park will include a 115-stall marketplace and celebrity chefs.
A family-friendly event that's being hosted by MasterChef winner Shelina Permaloo.
Unlike other awards, "no money changing hands between organisers & nominees", says ARON.
Four teams of competitive duos battle to recreate two fine-dining courses.