This recipe has 7 ingredients. It takes 30 minutes of total time, 20 minutes of which is active and makes 4 servings. I only made a few changes to the original recipe. First I made two versions, one gluten free and one with regular pasta. I did not use whole wheat spaghetti for the regular pasta, my family will not eat it (and I have tried I promise - every brand and they still hate it). To toast the pine nuts I used a skillet on the stove, very easy just make sure to watch them and they should only take a couple of minutes. Make sure to adequately salt the pesto, it will need a fair amount.
My husband and I thought this pesto was good. I would suggest adding more garlic, I like my pesto pretty garlicky tasting. I also would add a fair amount of crushed red pepper. It can be a little bland without it. The addition of cheese would also be nice, Romano would work nicely with the flavors.
For the recipe go to Watercress Pesto.