Flourless Walnut Cake

This Eastern European-style cake leans on a single elegant idea: replace all the flour with finely ground walnuts. The result is a moist, dense-yet-airy cake with deep nutty flavor and a tight crumb that holds beautifully under a dusting of powdered sugar and cocoa.

This is a torte-style cake, naturally gluten-free, and the structural lift comes entirely from properly whipped egg whites. Beat them to stiff peaks separately, fold in a quarter of them first to loosen the yolk mixture, then fold in the rest carefully to keep the air intact. Knock the air out and you’ll get a flat, dense puck.

Grinding the walnuts finely is non-negotiable. Coarse walnuts behave like nuts in a batter; finely ground walnuts behave like flour, providing structure and absorbing moisture. A food processor pulsed in short bursts gets you there without turning the nuts to butter.

Pro Tips

• Use room-temperature eggs, cold whites won’t whip to maximum volume
• Grind the walnuts with a tablespoon of the sugar to prevent them from going oily
• Lemon zest, freshly grated, brings a bright lift that prevents the cake from feeling heavy
• Test doneness gently, a wooden skewer should come out with just a few moist crumbs
• Cool completely before unmolding, this cake is delicate when warm

Variations

• Substitute hazelnuts or almonds for walnuts for a different nut profile
• Add a tablespoon of dark rum or amaretto to the yolk mixture for adult-only depth
• Serve with whipped cream and fresh raspberries for a classic finish