Sacivi is a Georgian dish with a thick sauce containing onion, garlic, walnuts, spices and herbs. Although this is a pretty easy dish to make, it requires plenty of time. The dish must be prepared in advance and chilled for 24 hours before serving. So it’s a good one to serve at a dinner party (particularly if you are serving a tapas or mezze style dinner) as it can all be prepared in advance and all you need to do before putting it on the table is add some garnish. Although this recipe uses chicken, a firm white fish such as monk fish or halibut are viable alternatives.