Spaghetti with Scallion Sauce

1 lb spaghetti

1/3 to ½ cup olive oil

4 cups chopped scallions

2 garlic cloves, chopped

1 tsp finely grated lemon zest

salt and pepper to taste

grated Parm to taste

Instructions:

Cook spaghetti in a 6- to 8-quart pot of boiling salted water until al dente.

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.

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

Drain pasta in a colander and return to pot.

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

Source: http://www.epicurious.com/recipes/food/views/Spaghetti-with-Scallion-Sauce-23261609/08/friday-recipes-basil.html