Prepare black and white cream , following the instructions indicated on the package. Then divide the mixture in half.
Add to first mixture melted chocolate, mix until a smooth paste and add all based biscuit black and white, spread it well and freeze for 20 minutes.
Add the second mixture coffee and spread on the chocolate cream and freeze for 20 minutes.
Then prepare tiramisu cream and spread it on the coffee cream and let it in the refrigerator for 20 minutes.
Bring out the cake and decorate it with chocolate chips. You can add chocolate topping. Cut and serve.