place roast in crock pot

in blender add garlic, tomatillos , jalapenos, cilantro and water. Blend on high till smooth. Pour over roast.

cut onion to chunks and add to crock pot.

fill remainder of crock pot to cover roast with water and add salt to taste.

cook on high until pull apart tender.

serve with finely chopped onion and cilantro and eat with warm tortillas...