Here is another sauce recipe that uses tomatillos.  This one was submitted by sharer Andrea Wasserman. Thanks Andrea!

Andrea says:
This recipe was given to me by my sister-in-law, who is from Mexico.  It can be used as a dipping or cooking sauce.

Green Sauce:
6 tomatillos
2-3 cloves garlic
1-3 hot peppers

Boil all above until soft, with just a little water to coat the bottom of the pan.

Chop an onion, then put all ingredients into a food processor, pulse until all remains chunky.

Add salt to taste.