Crush the digestive biscuits to a fine powder. Transfer to a medium bowl and add the softened butter. Mix using your fingers or a fork till you have a sand-like crumb.
Divide the mix between your bowls/cups and press with the back of the spoon to even it a bit.
Add about a tablespoon of the banoffee on top. Then place the sliced bananas and a dollop of the whipped cream.
If adding another layer, repeat the same assembly of biscuits, toffee, bananas and cream.
Finish with some grated chocolate, nuts or more sliced bananas. Even a little chocolate sauce on top looks and tastes great!
Refrigerate for atleast an hour and serve chilled.
You could cover and leave upto 2 days in the fridge.