Oxford University's Crossmodal Laboratory has published research claiming that high-frequency sounds enhance sweetness and low notes bring out more bitter tastes.
With that in mind, if you like your chocolate to taste sweet then the, um, scientists at Poundland* have made a ten-minute long video of high-pitched sounds to sonically season your Easter eggs.
Try it for yourself below, and let us know if it has any effect in the comments. We conducted our own... research in the office and the results were inconclusive. We'll get back to you after more research.