Step 1

In a food processor, add the walnuts, grated Parmigiano-Reggiano, Extra Virgin Olive Oil, lemon zest, lemon juice and garlic. Process until you have a coarse wet mixture.

Step 2

Add your basil to the food processor and continue to process. You may need to add your basil in batches depending on the size of your food processors. Process until you reach your desired consistency.

Step 3

Taste your pesto and adjust your seasonings. Parmigiano-Reggiano is salty, so you may not need to add much salt.