Genovese Pesto
“This is the OG of pestos, hailing from Genoa in Liguria. It’s traditionally made by hand using a marble mortar and wooden pestle, but it’s hard to find that amazingly tender Genovese basil in the US, so I opt to use a blender instead. I realize that it’s contradictory to talk about the great Genovese pesto and how much I love mortars and pestles and then make mine in a blender. The main reason is the basil. Genovese basil is a DOP basil grown in Liguria. Its leaves are small, thin, compact, and so tender. The basil has no option but to become a smooth sauce in the mortar. Our American basil is a bit heartier, so I think it works best in the blender, which aerates the pesto, creating an uber-light spread. Of course, if you find Genovese basil, try it in the mortar and pestle! My favorite part of this recipe is the technique for soaking the basil and parsley in ice water, which helps the herbs plump up a bit and absorb some of the water. This aids in emulsifying the pesto, and it also prevents the leaves from bruising and turning black from the friction of the blender, locking in the best green color and fresh flavor.” - Chef Sarah Grueneberg
From Listen to Your Vegetables by Sarah Grueneberg and Kate Heddings. Copyright © 2022 by Green Mountain Collection, LLC. Reprinted by permission of Harvest, an imprint of HarperCollins Publishers.
Ingredients
Makes 2 cups
2 tablespoons pine nuts
¾ cup everyday olive oil
3 cups packed fresh basil leaves (from about 4 ounces fresh basil)
1 cup fresh flat-leaf parsley leaves (from ½ bunch)
1 small garlic clove
½ cup freshly grated Parmigiano-Reggiano
½ cup freshly grated Pecorino Romano
Kosher salt
Preparation
CHEF SARAH RECOMMENDS: I always toast pine nuts in a skillet. I like this technique better than toasting in the oven because the nuts toast more evenly.
Now that you have mad pesto skills, have fun with the herb and nut combinations. I love to add mint to this pesto in the summer—you can sub mint for all the basil for a mint pesto, or for half the basil for a summer herb pesto.
1. In a small nonstick skillet, toast the pine nuts over medium heat, tossing or stirring continuously, until golden brown, 3 to 4 minutes. Transfer to a plate to cool.
2. Place the olive oil in the freezer until chilled, at lest 15 minutes. Meanwhile, fill a large bowl with ice water. Submerge the basil and parsley in it. Let soak for 5 minutes.
3. Remove the oil from the freezer and transfer to a blender along with the garlic. Working in two batches, lift the herbs from the ice water, shaking most of the excess water from the leaves (not all; a bit of water will make a smooth pesto) and add to the blender. Blend on high speed until combined, then repeat with the remaining herbs. Set the bowl of ice water aside. Finally, add the cheeses, pine nuts, and a pinch or two of salt and blend on high until the pesto is smooth.
4. Transfer the pesto to a small bowl and place the bowl in the ice bath. Stir the pesto and chill until cold. Transfer the pesto to an airtight container and keep refrigerated for up to 2 weeks. To store the pesto in the freezer, apply a small piece of plastic wrap directly on its surface, sealing it from the air in the top of the container. The pesto freezes beautifully for up to 3 months. I like to freeze it in 1-cup servings, as I often use 1 cup at a time.