My first sight of this grocery, in June 2017, came as I led a small tour group over (largely) familiar ground. Los Poblanos wasn't on my map, but from a distance I spotted the tubs that advertise nieves. The afternoon was hot; the group needed little persuasion to make a detour; the nieves, mango and melon, were excellent.
While passing by several months later, I saw the items shown here in an unlabeled crate outside the grocery. The manager couldn't provide a name; he said that some customers liked them but he did not, and he handed me a couple, free of charge. Each was slightly smaller than a table-tennis ball and nearly as stiff-shelled; I spent around ten minutes peeling one, first with fingernails and then with teeth. The inside seemed almost woody, and I soon tossed it in the trash; its fellow became a paperweight on my writing table.
Multiple attempts to identify it were unavailing until Margret Hefner, author of Frutas y Verduras: A Fresh Food Lover's Guide to Mexico, came across better-looking specimens in a Mexico City tianguis, a small outdoor market. The vendor called the fruit "cocoyul"; from that I identified its parent, Acrocomia aculeata, whose common name "Macaw palm" suggests that only a powerful beak, or perhaps a hammer, can crack that inner shell for a taste of the coconut-like endosperm within.
In some quarters, the fruits are reportedly mashed into a paste and fermented into an alcoholic beverage; Ms. Hefner also observed that they can also be long-cooked, in syrup, as frutas en almíbar. Perhaps I'll just leave them to the parrots.
Los Poblanos Grocery
92-19 Roosevelt Ave. (at 92nd St.), Jackson Heights, Queens
929-208-1880