Walnut Sauce for Pasta

I saw this on Ciao Italia. This recipe is featured on show 2110 – Classic Pasta of Liguria. Try with raviolis,

• Ready In: 22 mins
• Serves: 4

Ingredients

• 1⁄2 lb walnuts
• 1⁄3 cup pine nuts
• 1  garlic clove, peeled
•  salt
• 1⁄2 cup ricotta cheese
• 1⁄2 cup extra virgin olive oil
• 2 1⁄2 tablespoons  finely chopped marjoram or 2 1⁄2 tablespoons parsley

Directions

1. Place the walnuts, pine nuts, salt and garlic in a food processor and pulse to a paste. Add the cheese; pulse once or twice. Gradually add the olive oil until a smooth sauce is obtained. Transfer to a saucepan and stir in the marjoram or parsley. Keep the sauce warm while the pasta is cooking.
2. Serve hot and pass grated Parmigiano Reggiano cheese to sprinkle on top.