An edible nightshade berry similar to the dark “garden huckleberry” varieties, but with a more interesting, tangy and slightly savory taste.
 

Approximately 1/4” in diameter. Easy to grow, can get 2-3 feet tall if given space. Will continuously produce berries that ripen yellow or even a bit orange. Berries keep well on the plant. As with other nightshade berries, they should not be eaten until ripe, and eaten in moderation.  
 
Seeds, description, and photos from Wambus: https://www.instagram.com/grumpenstein3d/