Ruby cake is a traditional Western dessert whose main ingredients include a cake base, a sandwich and a buttercream frosting. The term "whitening" refers to an important step in the production process, where egg whites are whipped into foam and then mixed with the batter to achieve a fluffy effect. Thus, "Ruby Cake Blanc de Blancs" refers to the addition of whipped egg whites to the Ruby Cake to make it fluffier and more flavorful.

While "ruby cake whites" may seem like a simple process, it actually requires a certain amount of skill. First of all, when whipping the egg whites, take care to add the sugar slowly so that it is fully dissolved and reaches a stable state. Secondly, when mixing the batter, you need to stir gently to avoid over-mixing and causing the egg whites to collapse. Finally, during the baking process, you need to control the temperature and time to ensure that the cake cooks without over-drying.

"Ruby cake white off" plays an important role in making ruby cake, not only to make the cake more fluffy, but also to make the whole cake look more exquisite. As a delicacy, ruby cake has different preparation methods and flavors in different cultures and regions, but it is important to really master the art of making it to achieve the best results.