Life without gingernuts dunked in coffee could not be borne...
However, if one needs to get work done on this desert island then one needs Tunnocks Caramel Wafers...
And I'm with Sudanpan, actually - Dr Karg's.

Posh hard tack with flavour, fills you up and keeps you 'fuller longer' (to coin a phrase)
Ok, now I need more info... am I on the desert island alone? In which case I choose Dr Kargs. But if there are others there and I have to watch them eat other biscuits, then it has to be TUC / cheese savouries, because you can't watch someone eat one of those without needing to finish the packet for them
