This keto tiramisu combines layers of soft keto sponge soaked in an espresso and whiskey mixture with a rich mascarpone cream. It's a classic Italian-inspired dessert with all the flavor of traditional tiramisu while staying low in carbs.
Add the almond flour, melted butter, baking powder, and egg to a mixing bowl. Mix until smooth, then transfer the batter to a mug. Microwave for 90 seconds, until set. Remove from the mug, slice, and set aside.
Tiramisu
In a small bowl, mix together the espresso, whiskey, and heavy cream to make the soaking liquid. Set aside. In a separate bowl whisk the egg white until stiff peaks form and set aside.
In a separate bowl, whisk the egg yolk with the stevia until pale and slightly thickened. Add the mascarpone cheese and about two-thirds of the soaking liquid, then whisk until smooth and creamy.
Fold the whipped egg white into the mascarpone mixture.
Briefly soak the sliced keto sponge in the remaining soaking liquid, then layer the soaked sponge into individual glasses.
Spoon the mascarpone cream over the sponge layers, smoothing the top.
Dust generously with unsweetened cocoa powder.
Cover and refrigerate for at least 4 hours to set.