Genoise with Amaretto& Chocolate

This chocolate Amaretto cake pairs a light genoise sponge with a whipped chocolate ganache that doubles as both filling and frosting. The genoise gets its lift entirely from eggs beaten over warm water until they double in volume, no butter, no chemical leaveners. Just eggs, sugar, flour, cornstarch, and a touch of lemon zest.

Heating the eggs to 115°F (46°C) over the double boiler before whipping is what gives a genoise its signature height. Warm eggs hold more air and create a stable foam that won’t deflate when you fold in the flour. Skip this step and you’ll get a flat, dense cake instead of the airy sponge you need.

The chocolate filling is beautifully simple: hot cream poured over semisweet chocolate chips, stirred smooth, then chilled overnight and whipped to stiff peaks. That overnight rest is what transforms liquid ganache into something pipeable. Amaretto soaked into each cake layer before assembly adds an almond sweetness that deepens the chocolate without competing with it.

Pro Tips

• Sift the flour and cornstarch together three times as directed. This isn’t fussy baking advice. Triple sifting aerates the dry ingredients so they fold in without deflating the egg foam.
• Fold the flour in gently with a rubber spatula, not a whisk. Aggressive mixing knocks out the air you just spent time beating in.
• The ganache must chill overnight, not just a few hours. Underchilled ganache won’t whip to stiff peaks and will slide off the cake.
• Sprinkle the Amaretto evenly over each layer. A pastry brush helps distribute it without creating soggy spots.

Variations

• Frangelico version: Swap Amaretto for Frangelico (hazelnut liqueur) and garnish with chopped toasted hazelnuts.
• Mocha genoise: Add a tablespoon of instant espresso to the warm cream when melting the chocolate chips for a coffee-chocolate twist.