In a bowl, mix together mascarpone cheese, sugar, and vanilla extract until smooth. In a separate bowl, beat heavy cream until stiff peaks form. Fold the whipped cream into the mascarpone mixture. Dip ladyfingers in a mixture of coffee and rum and arrange in a layer in a dish. Top with the mascarpone mixture and repeat the layers. Dust with cocoa powder and refrigerate for at least 2 hours before serving.\n\n
How do you make tiramisu?