Easter is one of two times of the year at which it is permissible to ingest, and presumably digest, inordinate amounts of chocolate (the other being Christmas). My last two recipes, Chocolate Orange Mousse and Florentines, have more than facilitated that cocoa-based obligation, but now comes the slump. One cannot go on consuming vast quantities of chocolate ad infinitum, unless one actively intends to seek out ill-health. So, what better way to redeem the excesses of the past week than to indulge in a delicious, colourful and rather healthy salad?