Recipe for light, delicate, almost angelic sponge cake. It's often called "Angel Food Cake," "Chiffon Sponge Cake," or "Food of the Angels"... This snowy, airy sponge cake with a delicate crust will come in handy if you need to use up leftover egg whites from making ice cream, egg liqueur, and more. This sponge cake pairs perfectly with whipped cream and berries. To ensure the cake rises well and doesn't collapse during cooling, it is baked in a pan that is not greased or sprinkled with anything - the batter should cling to the sides of the pan (so a silicone pan won't work). The main issue arises when using a pan with a large diameter. In this case, the center of the cake may sink slightly under its own weight during baking. Using a ring-shaped pan or a rectangular one prevents this from happening. And to prevent the center from collapsing during cooling, the pan is flipped upside down. I used a detachable pan with a 9.5-inch diameter.