Answer:
Buy green tomatillos, peel them wash them and put them in a small pot with about a two cups of water depending on how much tomatillos you bought. More tomatillos than water. The water is to that the tomatillos wont stick to the bottom of the pot since u have to boil them. Boil them until soft. Then chop some cilantro onions Chile cerranos and put in a blender. Put in a bowl and season with salt.