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Export 8 ingredients for grocery delivery
Step 1
Combine the basil, pine nuts, olive oil and garlic in a food processor until finely chopped.
Step 2
Transfer to a bowl and mix in the cheeses and black pepper.
Step 3
(This sauce does not call for salt because of the saltiness of the cheeses used.).
Step 4
In a large pot, bring 5 quarts of water to a boil. Add about 1 tablespoon of salt.
Step 5
Add the pasta and stir frequently until al dente (about one or two minutes less than the cooking time recommended on the package).
Step 6
Drain the pasta, reserving 3 ounces of the cooking water.
Step 7
Place the pasta, pesto sauce, water, and butter in a large bowl and toss until all ingredients are well mixed.
Step 8
Serve immediately.