Perfect Pesto Pasta

Preheat oven to 350°F. Toast pine nuts on a rimmed baking sheet, tossing once, until golden brown, 5–7 minutes. Transfer to a food processor and let cool, 5–7 minutes.

Add garlic and grated Parmesan to food processor and pulse until finely ground, about 1 minute. Add basil and, with the motor running, add oil in a slow and steady stream; continue to process until pesto is mostly smooth with just a few flecks of green remaining, about 1 minute. Pulse in 1 tsp. salt.

Cook pasta in a large pot of boiling salted water, stirring occasionally, until al dente. Drain, reserving 1/2 cup pasta cooking liquid.