Crush the biscuits to a fine powder and add the butter. Mix well. Spoon the biscuit crumb equally into the 4 cups. Chill for 10 minutes.

Top with 2 tbsp dulce de leche and layer with bananas. Keep refrigerated.

Whisk the whipping cream with sugar until stiff peak forms.

Spoon the whipped cream equally into the 4 cups. Sprinkle grated chocolate on top. Refrigerate until ready to serve.