Ingredients:
- 1 cup (240 ml) strong brewed coffee, cooled
- 2 tablespoons (30 ml) coffee liqueur (such as Kahlua or Tia Maria), optional
- 1 tablespoon (15 ml) granulated sugar
- 6 large egg yolks
- ¾ cup (150g) granulated sugar
- ½ cup (120 ml) heavy cream, cold
- 1 pound (450g) mascarpone cheese, room temperature
- 1 teaspoon (5 ml) vanilla extract
- 1 (7-ounce/200g) package ladyfingers (savoiardi biscuits)
- Unsweetened cocoa powder, for dusting
Instructions:
- Prepare the Coffee Soak: Combine cooled coffee, coffee liqueur (if using), and sugar in a shallow dish. Stir until sugar dissolves.
- Make the Zabaglione: Whisk egg yolks and sugar together in a heatproof bowl set over a simmering pot of water (double boiler). Cook, whisking constantly, until the mixture is pale yellow, thickens, and reaches 160°F (71°C) on a thermometer. This takes about 5-7 minutes. Remove from heat and let cool slightly.
- Whip the Cream: In a separate bowl, whip heavy cream until stiff peaks form.
- Combine the Cream and Mascarpone: Gradually fold the mascarpone cheese into the cooled zabaglione mixture until smooth and combined. Gently fold in the whipped cream.
- Assemble the Tiramisu: Dip each ladyfinger into the coffee mixture for a few seconds (don't soak them completely!). Arrange a layer of coffee-soaked ladyfingers in the bottom of the baking dish.
- Layer the Cream: Spread half of the mascarpone cream mixture evenly over the ladyfingers.
- Repeat Layers: Repeat with another layer of coffee-soaked ladyfingers and the remaining mascarpone cream mixture.
- Chill: Cover the tiramisu with plastic wrap and refrigerate for at least 4 hours, or preferably overnight.
- Dust and Serve: Just before serving, dust generously with cocoa powder. Cut into squares and serve.