Lemony Pasta With Kelp, Chile and Anchovies

Step 1

Bring a large pot of lightly salted water to a boil. Add pasta and cook until just shy of al dente, usually 1 to 2 minutes earlier than the cooking time suggested on the packaging. Reserve 1 cup pasta water, then drain pasta.

Step 2

Meanwhile, in a medium bowl, stir together anchovies, garlic, lemon zest and red-pepper flakes to make a paste.

Step 3

In a 12-inch skillet, heat 1/4 cup oil over medium. Add anchovy paste and cook, stirring, until the anchovies begin to dissolve, about 2 minutes. Add kelp and cook, stirring, until slightly thickened, 1 to 2 minutes. Stir in 1/2 cup parsley and the butter. Add the pasta and toss to coat. If the mixture seems dry, add some of the reserved pasta water, tossing to coat the pasta with sauce. Season with salt and lemon juice, to taste.

Step 4

Garnish with more parsley, drizzle with oil, if desired, and serve immediately.