To make your vegan mascarpone filling, blend the tofu, plant milk, powdered sugar, lemon juice, and vanilla in a high speed blender. Set aside.
In a bowl, combine one cup of warm water with the instant espresso and mix well.
After you have created the coffee mixture, add the rum. I used rum because it’s part of the classic tiramisu recipe, but if you don’t consume alcohol, just skip it!
Start by dipping each vanilla wafer into your espresso/ rum mix for just about a second until it's fully saturated and then transfer it to your first cup. Don't over soak the wafers because they will fall apart.
Dip about 2-3 wafers for each layer.
On top of the wafer layer, add 2-3 spoonfuls of your mascarpone filling.
On top of the mascarpone layer, sift a thin layer of cacao powder on top.
Repeat the steps, alternating from dipped wafers, mascarpone, and cacao. Do this until you reach the top of the cup. The layer of cacao should be on top.
When you have done this with all of the cups, refrigerate them for at least an hour.