Step 1

Wash the celery leaves in cold water and lightly pat them dry.

Step 2

Add all the ingredients, except the olive oil, to a food processor bowl. Pulse until a thick paste forms (scrape the ingredients from the sides of the bowl from time to time).

Step 3

Add the olive oil and pulse the sauce at the lowest speed until well combined or whisk in the olive oil by hand.

Step 4

Season to taste with salt and pepper. You can also add more olive oil if you want a thinner consistency of your pesto.

Step 5

Enjoy!