Horseradish and Raspberry Relish

This is a welcome by-product of the raspberry vinegar recipe. The raspberries, which were only used to flavour the vinegar, are economically re-used in this relish, which can accompany any cold meats. You may buy raspberries especially for this dish, but you will need to add some vinegar, perhaps about 50ml (2 fl oz), or to your taste.