Creamy Pesto Pasta Sauce

Instructions

1. 1
   In a food processor, combine basil, toasted pine nuts, garlic, Parmesan, salt, and lemon zest (if using). Pulse to chop.
2. 2
   With the motor running, slowly add olive oil until the pesto is smooth.
3. 3
   Transfer pesto to a saucepan on low heat. Stir in the heavy cream and pepper. Warm for 2–3 minutes without boiling.
4. 4
   Toss hot, cooked pasta with the creamy pesto sauce until evenly coated. Thin with reserved pasta water as needed.
5. 5
   Serve immediately, topped with extra Parmesan, basil, and pine nuts.