When sour oranges (nāranj) are in season, there’s only one thing to do, and that is to find recipes to use them in! Fortunately, medieval Arabic cookery books contain several stews to do the trick, like this one from The Sultan’s Feast. It is made with lamb and chicken balls, with pistachios mixed in. The sauce contains galangal, ginger, rose-water syrup, sour oranges (a lot!), some more pistachios, mint, and rose water. One could do worse in life than to heed the advice by the author of the cookery book: “Those who have the acumen to increase flavours have infinite perspicacity and intelligence!”