This young gal sold zhongzi, too, but it was her yutou gao ($2) that attracted attention from the moment she set out her wares. The body of this steamed "cake" is composed of rice flour and taro (or, elsewhere, yam); the top is dressed with dried shrimp, sausage, peanut, and spring onion. Ideally you'd enjoy your yutou gao immediately after it had been steamed; it can also be eaten cold or panfried just before serving. A little chili sauce never hurts.
Unlike the older lady I've referred to as a streetside "small eats" vendor, and who is a semi-regular along the Grand St. stoopline, this younger lady has appeared just once that I've seen.
Taro cake vendor
Grand St. (Elizabeth St.-Bowery, south side), Manhattan