Step 1

Preheat oven to 250 degrees F.

Step 2

Arrange 20 chile pods on a cookie sheet and roast for 20 minutes

Step 3

Flip chiles halfway through roasting process

Step 4

After chiles have cooled to touch,remove stems and seeds

Step 5

Add chiles and onion to large pasta pot and cover with water

Step 6

Bring to a boil, then reduce heat, cover, and simmer for 10 minutes

Step 7

Strain the chiles if desired, or reserve 2 cups of water for blending

Step 8

Carefully remove chiles and onion from pot and add to blender

Step 9

Add remaining ingredients and blend until smooth