Ingredients
100 g basil leaves (see “Keep it Green,” below)
60 g toasted walnuts
60 g grated Parmesan cheese
80 ml extra-virgin olive oil
4 cloves garlic, chopped
1/4 tsp salt
Directions
Step 1
In a food processor, combine basil, walnuts, Parmesan, olive oil, garlic, and salt. Cover and process until nearly smooth. If necessary, add water, a tablespoon at a time, to achieve the desired consistency.
Step 2
Transfer the pesto to a bowl and cover the surface with plastic wrap. Chill for up to 3 days.