Spaghetti with Lemon and Olive Oil Ingredients Table salt 1 pound spaghetti 1/4 cup extra virgin olive oil , plus more for serving 1 medium shallot , minced (about 3 tablespoons) 1/4 cup heavy cream 2 teaspoons finely grated zest and 1/4 cup juice from 3 lemons 1 ounce finely grated Parmesan cheese (about