Turn the oven to broil.

Wash the peppers then line them in the center of a baking sheet.

Place the baking sheet on the top shelf of the oven and broil for 4 – 5 minutes.

Flip over and broil for 3 – 4 minutes until they are charred.

Put them in a cover dish to steam for about 10 minutes.

Peel the skin of the jalapeno peppers.

Cut the stem of all the peppers and remove the seeds from the Nardello peppers by cutting them in half and scraping out the seeds.

Measure and add all ingredients into a bowl of a food processor or blender and blend until smooth.  Scrape the sides and bottom at least once.