Chop the parsley.
1 Handful Parsley
Using the microplane or fine grater, zest the lemon (make sure it is washed first).
1 Large Lemon
Set a pot of water over high heat to boil. Once boiling, salt the water "like the ocean" and drop in the pasta. Boil to al dente per package directions.
1 Lb Linguine, Spaghetti or Fettucine
While the pasta boils, melt the butter with the olive oil in a pan over medium heat.
4 Oz. Unsalted Butter, 1 Tbsp Olive Oil
Add the cream and stir in the parmesan cheese. Add a pinch of salt and pepper.
1 C Heavy Cream, 4 Oz. Parmesan Cheese, Salt and Pepper to Taste
Cook about 2 minutes before dropping the heat to low. Stir in half the chopped parsley.
With about a minute left on the pasta, stir 1/4 C of the pasta water in with the cream sauce. Juice the lemon into the sauce. Stir in the lemon zest (reserving a pinch for garnish if you want to be fancy).
Set aside another 1/2 C of pasta water and give the pasta a quick drain before adding it to the cream sauce. The pasta should still be wet after draining. You can also use tongs to transfer the pasta from the water to the sauce.
Mix the pasta and sauce until fully combined. If the sauce it too thick, add some of the reserved pasta water. If too thin, simply cook a touch longer. It should be a little thinner than alfredo sauce.
Add salt and pepper to taste.
Serve right away, garnished with the remaining parsley and any extra lemon zest and parmesan cheese. I like to add lemon weges on the side in case anyone wants more lemon flavor.