Soak the cashew in hot water for 30 minutes
Cook the edamame for 10 minutes in boiling water
Prepare the pesto by mixing together the edamame with the soaked cashew, the olive oil and the nutritional yeast and water (if you feel that it is not necessary to untie the pesto, you do not have to add the water). Mix again. Add salt and pepper to taste.
Cook the pasta in boiling water.
Serve pasta with pesto