Mix all ingredients for the base and mix into a dough.
Pour the dough into a round baking pan and bake at 180 degrees for about 15 minutes.
In the meantime, whip the whipped cream and fold in the chocolate chips.
Let the dough cool down a bit.
Use a spoon to carefully hollow out the base by approx. 1-2 cm, leaving an edge of approx. 2 cm thick.
Crumble the scooped out base dough and set aside.
Optionally, spread melted chocolate over the base.
Peel the bananas, cut them in half and place them in the hollow of the base.
Spread the whipped cream on top like a dollop.
Carefully spread the crumbs by hand over the whipped cream until the cake is completely covered.
Refrigerate for at least 2 hours.