Tomatillo: This spongy fleshed fruit has its origins in Guatemala and Mexico. They possess a husk covering and is the prime ingredient is Green Sauce ( Mexican salsa verde; not Spanish salsa verde which is made of parsley herb, olive oil, garlic  and white wine and is used in a traditional fish dish called Merluza en Salsa Verde = Hake in green sauce ).

 

Though resembling a green tomato, it has a distinctly different taste.