Flourless Chocolate Mocha Cake

This flourless chocolate cake is dense, fudgy, and built from just a handful of ingredients done right. A pound of bittersweet chocolate melts with butter, then meets six eggs that have been whipped to triple their volume to create a cake that rises on aeration alone, no flour required.

Finely ground espresso beans go in alongside the eggs, deepening the chocolate notes without making the cake taste overtly of coffee. The mocha effect is subtle, the way a great hot chocolate gets richer with a pinch of espresso powder.

The water bath bake is the technique that makes it work. A blast of high heat at 425°F (220°C) sets the edges fast, and steam from the surrounding water keeps the center silky and prevents cracking. After cooling and a long overnight chill, the cake firms into something almost truffle-like that slices clean.

A pile of vanilla whipped cream, a circle of toasted pecan halves, and a free-form zig-zag of melted chocolate finish it like a dessert that earned its place at the head of the table.

Pro Tips

• Warm the eggs in their shell over warm tap water before beating. Warm eggs whip to triple volume; cold eggs barely double.
• Fold the beaten eggs into the chocolate in two stages. The first half lightens the dense chocolate base; the second preserves the air you worked to build in.
• Don’t skip the overnight chill. The cake firms into its signature dense fudgy texture only after 6 hours or longer in the fridge.
• Run a knife around the edge after a brief warm-oven release. Cold cakes stick stubbornly; a touch of heat lets them slip free.

Variations

• Add 2 tablespoons of Grand Marnier or dark rum to the chocolate-butter mixture for a boozy lift.
• Swap pecans for toasted hazelnuts or sliced almonds for a different nut character.
• Dust the top with cocoa powder instead of using whipped cream for a more austere, European-style finish.