This delicate cake is an adaptation of a chiffon cake made by the mum of my ‘Harvest Time in Harlem’ co-founder, Yuri Asano. It’s one of my ‘go-to’ desserts to prepare when I’m entertaining because it’s so easy, and it’s the perfect end to a big meal. Don’t skimp on the quality of the green tea powder, as the better ones not only taste more refined, but lend a gorgeous colour and fragrance. Less expensive varieties tend to make the cake turn brownish in tint.