Step 1

Bring a pot of water to a boil and salt the water well. Cook the spaghetti according to package instructions to al dente (about 8 minutes). Reserve 1 cup of the pasta cooking water before draining.

Step 2

When the pasta is nearly done (about 5 minutes into cooking it), heat the olive oil in a large skillet over medium heat. Add the minced garlic and crushed red pepper flakes, and cook, stirring until fragrant, about 30 seconds. Add the lemon juice and about ¼ cup of the pasta cooking water for now.

Step 3

Drain the pasta and add it to the skillet and toss over medium heat.

Step 4

Remove the skillet from the heat and add the parsley, lemon zest and grated parmesan. Season with kosher salt and black pepper to taste. Toss again to combine, and if needed, add a little bit more of the pasta cooking water and a drizzle of extra virgin olive oil. Serve immediately!