Prepare three vanilla chiffon cakes and cut each in half to create six thin layers
Make an espresso martini soak by combining sweetened espresso (or strong coffee), coffee liqueur, and vodka
Brush each cake layer with the espresso martini soak
Prepare classic tiramisu mascarpone cream filling
Layer the cakes with the tiramisu mascarpone cream between each layer
Refrigerate the assembled cake to allow the mascarpone cream to set
Loosen some of the remaining mascarpone cream with a splash of heavy cream
Pour the loosened mascarpone cream over the top of the cake
Dust the top with cocoa powder for a dramatic finish
