Peel the green tomatillos if they still have the dry skin.
2
In a boiling water cook the tomatillos and chiles serranos for 1 or 2 min. ground all the ingredients.
3
You can use this fresh salsa for tacos or quesadillas or if you want you can cook it: in a sauce pan add a little amount of vegetable oil and when it will be warm add the "salsa", cook 20 min or more.