Spaghetti al Limone With Shrimp

Preparation

1. Step 1

   Bring a large pot of salted water to boil. Add the spaghetti and cook according to package directions until al dente. Scoop out 1 cup of the cooking liquid, then drain the pasta and set aside.

2. Step 2

   While the pasta cooks, pat the shrimp dry and season them with salt and black pepper. Combine the olive oil, lemon zest (setting a few pinches aside for serving) and tarragon in a large skillet set over medium heat. When the oil begins to sizzle, cook for 1 more minute, until the zest and tarragon are fragrant but not browned.

3. Step 3

   Add the shrimp to the skillet and spread into an even layer. Cook for about 90 seconds on each side, or until just cooked through. Transfer the shrimp to a plate and set aside.

4. Step 4

   Add the wine, 1 teaspoon salt and a few grinds of black pepper to the skillet, and bring to a simmer, scraping any browned bits from the pan. Cook until the wine has reduced by about half, then set aside, off the heat, until the pasta has finished cooking.

5. Step 5

   Add the cooked pasta and reserved pasta water to the skillet. Cook over medium-low heat for 2 to 3 minutes, tossing often, until the liquid that has collected at the bottom of the skillet has reduced slightly. (The sauce should still be fairly loose at this point.)

6. Step 6

   Off the heat, add the butter and ½ cup Parmesan, sprinkling the cheese evenly over the pasta. Toss until the butter and cheese are melted and the sauce is smooth. Add the lemon juice and remaining ¼ cup Parmesan, and toss until the sauce is thick and smooth.

7. Step 7

   Add the shrimp, toss, then season with more salt and black pepper to taste. Divide among shallow bowls and garnish with chopped fresh tarragon, lemon zest and black pepper.