Here's What You'll Need
basil leaves, walnut, garlic clove, lemon zest, olive oil, parmigiano reggiano
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Place the basil, toasted walnuts, garlic, lemon zest, and lemon juice in a food processor. Secure the lid, the pulse until very finely chopped.
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With the motor running, slowly drizzle in the olive oil, as needed. You want the sauce to be liquidy as the cheese will help to thicken the sauce.
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Transfer the sauce to a bowl, then stir in grated Parmesan cheese. Taste and adjust seasoning, as needed.
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