This carbonated beverage (300 ml., $1.29) was both bitter and sweet at once, more of a distraction than a refreshment. I did note with amusement that although the brand name is spelled with three Zs, my friend's diet mauby, from a different maker, spells its name with only two.
More interesting is the case of mauby and mabi: Are they one and the same? Some sources suggest that this is a single beverage, with various spellings, and muddy any distinctions regarding a key ingredient, the bark of certain trees in the Colubrina genus. One EIT reader, however, maintains that the two taste "vastly different" (thanks for weighing in, No/Deli!), which jibes with my own impression. After a long-ago visit to another vendor, Papo Frutas, I observed that mauby is typically much less sweet than mabi, to the point of astringency.
Two different barks may explain the two different flavors. The Dominican proprietor of Papo Frutas, who did business from a repurposed school bus, relied on a large, professionally printed banner to advertise his wares. Among them was "mabi de bouco Indio." This colloquial name, more often spelled behuco Indio, denotes one particular species of tree from the genus in question: Colubrina elliptica. A glance at the label on my Mauby Fizzz indicates that it was made in Trinidad and Tobago using extract of the bark from a different species: Colubrina arborescens. Other labels in my photo archives support this distinction. More corroboration is needed, however, except as regards my personal preference: I like mabi more.
3114 Church Ave. (East 31st-East 32nd Sts.), Flatbush, Brooklyn