Step 1: Mix Biscuit Crumb, 5 tbsp of powdered sugar & melted butter to make a crumbly mixture. You can reduce added sugar if you are using sweeter biscuits for crumbs. Keep aside.
Step 2: Boil the whole can of Nestlé MILKMAID as it is (without opening the can) in boiling water for at least 2 hours to prepare dulce de leche i.e., caramelized form of Nestlé MILKMAID.
Step 3: Take out of boiling water and rest it for a few hours.
Step 4: In a non-stick pan, take solid butter and prepared dulce de leche and cook together on low flame till all the butter is incorporated and a nice fluidity is achieved.
Step 5: Whisk fresh cream in a bowl with 3 tbsp of powdered sugar over an ice bath until little stiff, and sugar dissolves completely.
Step 6: Take 8 small glasses. In each glass, sprinkle about 2-3 tablespoons of the crumbly mixture prepared in Step 1. Add 1 tbsp of dulce de leche layer on top. Now put some sliced banana pieces.
Step 7: Top up with more crumbly mixture for extra crunch. Pour some whisked cream. Top up with dulce de layer again. Finally, garnish with grated chocolate and refrigerate for a few hours and serve chilled.