Kookoo is Persian frittata; a posh, fat omelette full of flavour – herbs, spices, nuts. They can be sweet or savoury, made into individual patties or cooked like a cake to be cut in the pan. They can be used in sandwiches, as a snack on their own, as part of a mezze spread, or for breaking fast. But they are, of course, normally made with eggs. We finally plucked up the courage to make vegan kookoo a little while ago after one of our Iranian vegan customers reported success with aquafaba.