This lemon chiffon cake recipe is a refreshing twist on the classic chiffon cake. Made with the Thermomix, it is light, fluffy, and has a bright lemon flavor. The cake is made with a combination of cake flour, sugar, baking powder, salt, vegetable oil, egg yolks, water, lemon zest, and lemon juice. The egg whites are whipped separately and then folded into the batter to give it its signature airy texture. This cake is perfect for serving with a dollop of whipped cream and fresh berries.