INGREDIENTS
•
Kosher salt, to taste, plus 1 teaspoon
•
1 pound spaghetti
•
3 cloves garlic, minced
•
1/2 cup extra-virgin olive oil
•
Pinch red pepper flakes
•
2 tablespoons chopped flat-leaf parsley
•
1/2 lemon, zested, optional
•
Freshly grated Parmigiano-Reggiano, optional