This ingredient may not be as strange as cactus leaves or other interesting plants but I thought about the strangeness of this fruit, while I was preparing them for a tamale' sauce. The tomatillo is a round, firm, green fruit that is usually found still wrapped in its casing.
This green fruit is found within the tomato family and is often a bit tart and used in most, if not all, of Latin American green sauces. The fruit ripens and grows within the husk, and then it splits it open finally at the end.
The tamale sauce, requires that you peel off the husk, wash them, chop it in half and then bake them till they are good and roasted (375 degrees F for 45 minutes.) You then blend them in the blender with some tomatoes and some peppers and it makes for a very nice sauce.