Egg whites are the key element in this recipe.
I love snacking on packaged Middle Eastern sesame bars, which are very hard and crunchy. These florentines are much chewier, but their sesame flavor reminds me of those.
The tart looks homey, but it's oddly sophisticated in its own way and not-so-oddly very satisfying, particularly after a hearty meal.
If you're going to take on an ambitious dessert, it had better look and taste spectacular. This is one of those creations — a dome of cake filled with alternating layers of almond and pistachio mousses, fresh raspberries, and finished with billows of whipped cream. It comes to the table looking like a great white snowdrift studded with fresh raspberries.