This red velvet chiffon cake recipe is a festive twist on the classic chiffon cake. Made with the Thermomix, it is light, fluffy, and has a rich red velvet flavor. The cake is made with a combination of cake flour, sugar, baking powder, salt, vegetable oil, egg yolks, water, cocoa powder, and red food coloring. 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 cream cheese frosting and fresh berries.