I'm growing these things in my garden and I'm not sure if they're tomatillos or ground cherries (or maybe there's no difference). They came up as volunteers this spring, descendents of the plants I got from a friend last year, so I don't know what it said on the seed packet.
The fruit, which comes neatly packaged in a cute papery lantern-husk, is sweet enough to eat as is, once it's fully ripe. When they're ripe, they fall off the plant onto the ground. I know that tomatillos are similar but I've never eaten a fresh one so I don't know what they taste like. And if they are tomatillos, at what point do you use them to make salsa? Should they be fully ripe or slightly underripe so they're still tart?