This dish is simplicity itself. It used to be made with mayonnaise throughout the ex-Soviet Union, but thank goodness that’s all over and we can now use traditional premium dairy. As with all simple recipes, this is particularly tasty if you can source great home-grown or good-quality courgettes and make your own matsoni. If your courgettes are not the greatest, try using a mixture of all the soft herbs you like best to give them a bit of a lift. But if you have amazing vegetables and your own homemade yogurt, use just a little dill and let them sing their sweet, gentle song. And I love borage for its subtle cucumber flavour overtones. [Photography: Elena Heatherwick - Food stylist: Olia Hercules - Book credit: Kaukasis: The Cookbook by Olia Hercules was published by Mitchell Beazley on August 10, 2017, £25 (www.octopusbooks.co.uk)]