Dorie Greenspan's 10 cookbooks have won a total of six James Beard and IACP awards, including Cookbook of the Year. She is the author of Around My French Table and Baking Chez Moi (October 2014).
Egg whites are the key element in this recipe.
It's one of few restaurant desserts that can be made at home with foolproof results, even if you're not a star baker.
The classic Opera Cake is a work in six acts.