I live in Oxford, in the United Kingdom, in a part of the city with a vibrant multicultural community. My local corner shop has an excellent selection of spices, pulses, and obscure and vegetables fruit that mostly tends to be from the region of Pakistan and India, and only labelled (illegibly) in a language that I do not speak.
I've just bought a fruit I thought at first inspection was an unripe mango -- previously they have had excellent, cheap, small alphonso mangos for sale that I'm rather partial to. I'm completely wrong, however, for I've bought something about the size of my fist with striking white seeds that taste very peppery, a green coat, and somewhat sour flesh. It floats in water, and the skin exuded a slightly sticky, partially white gummy substance when I removed it from the bag. It's not particularly soft to touch. The seeds look a bit wrinkly, and are not hard at all to touch. The flesh has a consistency of an apple.
I can't for the life of me identify it! I'd love to know any suggestions! Thank you!