Physalis pruinosa?
I grow it from time to time. I have a batch of them this year.
They are easier to grow than tomatoes, but not so easy as "Wonderberries" which naturalize extremely easily. They are a little cooler-growing than tomatoes, and not as disease-prone. If happy, they are capable of naturalizing, but oddly they don't seem to naturalize as easily as their close relations tomatillos do. They are sweeter and, dare I say, better tasting that tomatillos, having more flavor.
The fruit is pleasant but not what I would call "amazing". They taste intermediate between a tomato and a plum (hence "pruinosa" I suspect), and make a refreshing dessert. They are sweeter than tomatoes, but not intensely sweet. They taste like Cape Gooseberries if you know what those are, and are closely-related to those. But they are hardy annuals instead of tender perennials, and easier to grow.
They are ripe when they fall off the plant. Just scoop up the little paper "lanterns".
I have 2 varieties that I can't keep straight. They are similar aside from the size of the fruit.