The first layer of soaked biscuits is laid out, we can spread butter cream on it, I do this with a knife, being careful not to crush the biscuits. The first layer is complete, just start over until you run out of stock: a layer of biscuits a layer of buttercream.
4
Once you have the last layer of cookies on, cover them completely with buttercream.
Then cover with aluminum foil and refrigerate for 24 hours, or at least 48 hours if possible.
Taking it out of fridge half an 1h before serve.

Enjoy!