BEST PESTO SAUCE TO BUY RECIPES

Steps:

• Place walnuts, pine nuts, salt, pepper, garlic, butter, basil, and parsley in to a blender or food processor. Turn the blender on, and add the olive oil in a slow, steady stream. Continue processing until a soft paste has formed. Fold in Parmesan and Romano cheeses. Store in the refrigerator covered by 1/4 inch of olive oil to prevent the surface from turning brown.

Steps:

• Preheat oven to 350°. Toast pine nuts on a rimmed baking sheet (or quarter sheet pan), tossing once halfway through, until golden brown, 5–7 minutes. Transfer to a food processor and let cool. Add cheese and garlic and pulse until finely ground, about 1 minute. Add basil and place the top back on. With the motor running, add oil in a slow and steady stream until pesto is mostly smooth, with just a few flecks of green, about 1 minute. Season with salt. Do Ahead: Pesto can be made 1 day ahead. Top with ½" oil to prevent browning. Store in a covered container (an extra drizzle of oil on top will help prevent oxidation) and chill.
• If you want to use this with pasta, cook 12 oz. dried pasta (we prefer long pasta for pesto) in a large pot of boiling salted water, stirring occasionally, until al dente. Drain, reserving ½ cup pasta cooking liquid.
• Place pesto and 2 Tbsp. unsalted butter, cut into pieces, in a large bowl. Add pasta and ¼ cup pasta cooking liquid. Using tongs, toss vigorously, adding more pasta cooking liquid if needed, until pasta is glossy and well coated with sauce. Season with salt.
• Divide pasta among bowls. Top with finely grated Parmesan.