As with jam, jelly is regulated; the FDA mandates that a product labeled jelly contain fruit juice and contain at least 65% sugar (which is why low-sugar products are labeled as fruit spreads).

Sweet, tart, free: The fruit of the jelly palm is delectable but underappreciated. Published: ; Aug. 07, 2009, 7:48 a.m.

Jelly. At one end of the spectrum, you have jelly. It’s the firmest, clearest fruit condiment around. Once the fruit is cooked, it’s strained, so that only the juice ends up in the jelly.