Spaghetti With Scallion Sauce

1. 1

   Cook spaghetti in a 6- to 8-quart pot of

2. 2

   until al dente.

3. 3

   While pasta cooks, heat 3 tablespoons olive oil in a 12-inch heavy skillet over moderate heat until hot but not smoking, then cook scallions and garlic, stirring occasionally, until scallions are softened and garlic begins to turn golden, about 5 minutes.

4. 4

   Transfer scallion mixture to a blender and add zest, salt, pepper, remaining olive oil, and 1/2 cup pasta-cooking water, then puree until smooth. (Use caution when blending hot liquids.)

5. 5

   Drain pasta in a colander and return to pot.

6. 6

   Toss pasta with scallion puree, cheese, and salt and pepper to taste over moderate heat until pasta is well coated.

* Per serving · 4 servings · Values may vary.

No additional tips available.