Make banana caramel. Heat butter, add banana and saute for a min.
Add in brown sugar and vanilla and mix well.
Add in cream and mix well till saucy.
Make pudding. Take milk and heat it. Add chocolate and mix well.
Add sugar and mix well.
Mix cornflour with little water. Pour it into the milk.
Stir and thicken. Set aside.
Take cake pieces in a serving cup.
Top with chocolate sauce.
Top with banana. Top with pudding and cream.
Chill in fridge till serving.