I usually buy my frozen tropical fruit purees at the trade fair or the met food in JH and stock them in my freezer. But the other day, needing some passion fruit puree and realizing that what I thought was that in my freezer was actually guanabana, I set out on a search to find some in Brooklyn, because I didn't want to drive all the way to queens.
My search led me to the Key Food on 5th ave and 45th (???) in Sunset Park. They stock all of the usual fruit purees, in case anyone else is looking. But what surprised me was how nice a supermarket it was. I usually don't like Key Foods because I find them to be crowded, dingy, and poorly stocked, but this one was big, clean, well-stocked, and full of Mexican products, not to mention the best Goya aisle I've found since I moved to Brooklyn. (double the kinds of canned and dried beans I get at my met food.)
4320 5th Ave, Brooklyn, NY 11232