M&S Physalis berry

A Physalis berry is a native Peruvian berry which is an interesting berry because it is encased in a papery calyx.

When you remove the calyx the stalk bit can get quite sticky.

As for the taste, it can be quite confusing because it is quite tart yet quite sweet tasting like a tomato and also like tart strawberry.

Visually it looks like an orange cherry tomato.