Using a food processor or a rolling pin crush the biscuits to make a fine powder.
Mix the powder with melted butter. Press the crumbs into a tart tin. Place in the fridge for half an hour to set.
Add brown sugar and butter in a pan and swirl the pan till sugar melts and turns brown. Add milk cream and cook for 2-3 minutes more till it becomes thick.
Onto the biscuit base drizzle the caramel sauce and spread evenly on top. Now add the sliced banana on top of the caramel layer.
Whip the cream with icing sugar and add vanilla until soft peak. Pipe the whipped cream over the top.
Sprinkle cocoa powder or chocolate sauce and Keep in the fridge till ready to serve.
Notes
Use ripe but firm bananas to prevent them from becoming mushy.
Allow the caramel sauce to cool slightly before pouring it over the bananas to avoid softening the biscuit base.
Do not overwhip the cream; stop at soft peaks for a light and smooth texture.
You can prepare the biscuit base a day ahead and keep it refrigerated until assembly.
For a richer flavor, substitute plain biscuits with digestive or Marie biscuits.
If the caramel thickens too much after cooling, warm it gently and stir to loosen.
This dessert is best served well chilled for clean layers and better flavor.
Avoid freezing, as bananas may turn watery after thawing.