Ingredients
Method
- Cook penne in a large pot of salted boiling water until al dente, about 12 minutes. Reserve 1/2 cup pasta water, then drain.
- Toast pine nuts in a dry skillet over medium heat for 2-3 minutes until golden. Blend pine nuts, basil, garlic, and salt in a food processor, then slowly add olive oil with the machine running. Pulse in Parmesan and pepper until just combined.
- Toss hot pasta with pesto and a splash of pasta water, adding more water as needed until the sauce coats the penne. Serve with extra Parmesan.
Notes
If the pesto tastes a little sharp, a tiny pinch of sugar or a teaspoon more Parmesan rounds it out. The sauce thickens as it sits, so add that pasta water right before serving.
