Rinse your fresh-picked nettles, put them in boiling water for a minute, lift them in a sieve, rinse with cold water and squeeze out the excess water.
Roast your cashew nuts in 350 F in an air fryer for 2-3 minutes or in the oven to get a slight golden color.
Soak you cashews in water for 15 minutes. Then drain the water.
Put your cashews and other ingredients in a blender and make a smooth pesto, you need to scrape the sides a couple of times when using a high-speed blender.
Notes
To make the pesto you can also use a hand mixer or even a multi chopper.