Sharbat-e bidmeshk (willow blossom sherbet)
Kashan and the villages of Qamsar and Niasar are famous for distilling flowers in spring: rose water in May, and before that araq-e bidmeshk, the distillate of the fuzzy catkins of the musk willow. In summer, when the desert heat settles over the old houses, the same bottles go into sharbat-e bidmeshk, a pale syrup diluted with icy water and served to guests in tall glasses, sometimes with swollen basil seeds. It is traditionally drunk to calm the nerves and cool the body. The taste is delicate, sweet and haunting, somewhere between honeysuckle, musk and fresh hay. The common mistake is adding the distillate to hot syrup; the heat drives the scent away within minutes, so cool the syrup completely first. The syrup is ready when it is clear and pours like thin honey, and the finished sherbet should smell floral the moment you lift the glass. Look for the distillate in Iranian shops; there is no true substitute, though rose water with a few drops of orange-blossom water makes a pleasant but different drink. Chef's tip: a squeeze of lemon in the syrup stops it crystallising in the fridge, where it keeps for a month.
























