Step 1

Cook pasta in a saucepan of boiling salted water, following packet directions until tender. Drain. Return to pan.

Step 2

Meanwhile, process basil, pine nuts, garlic and parmesan, scraping down sides occasionally, until almost smooth.

Step 3

With motor running, add oil in a slow, steady stream. Process to combine. Season with salt and pepper.

Step 4

Add pesto to pasta. Toss to combine. Serve