Step 1 of 7
Cook pasta according to package directions. Reserve 1 cup pasta water.
Step 2 of 7
In a food processor, combine basil, pine nuts, Parmesan, and garlic.
Step 3 of 7
Pulse until finely chopped.
Step 4 of 7
With processor running, slowly drizzle in olive oil until smooth.
Step 5 of 7
Add lemon juice and salt. Pulse to combine.
Step 6 of 7
Toss hot pasta with pesto, adding pasta water as needed to reach desired consistency.
Step 7 of 7
Serve immediately with extra Parmesan and pine nuts.