Apricot water
I don't know whether Berlioz drank exactly this kind of apricot water in Bulgakov's "The Master and Margarita," but judging by the description, it must have been very similar—apricot water really does foam and smells like a barber shop :) I can guarantee that if you serve apricot water instead of the usual juices, compotes, or sodas, the effect will be striking. The drink has a very strong, pleasant aroma and, of course, a wonderful taste. Way better than any lemonade by a thousandfold. Good luck with making it! :)
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