Bring a large pot of salted water to a boil and cook 12 oz pasta of choice (spaghetti, fettuccine, or linguine) according to package instructions until al dente. Reserve ½-1 cup of pasta water, then drain the pasta.
In the same pot or a large skillet over medium heat, melt 4 tablespoons unsalted butter. Add the minced 4 cloves garlic and ¼ teaspoon red pepper flakes, and sauté for 1-2 minutes until fragrant and golden, being careful not to burn the garlic.
Return the drained pasta to the pan with the garlic butter and toss to coat evenly. Add a splash of the reserved pasta water if needed to loosen the sauce and help it cling to the pasta.
Season with ½ teaspoon sea salt and freshly ground ¼ teaspoon black pepper to taste, then stir in the Parmesan cheese if using, along with 2 tablespoons chopped fresh parsley or basil.
Serve immediately, with extra ½ cup freshly grated Parmesan cheese and herbs on top
Notes
Storage: Store leftovers in an airtight container in the fridge for up to 3 days. Reheat gently in a skillet over low heat with a splash of water or broth to loosen the sauce and prevent sticking. While pasta freezes well, I don't recommend it as it is very quick and easy to cook it fresh. Helpful Tips:
Prevent sticking: Avoid rinsing the pasta - that starch is what will help the butter to stick to the pasta. Toss the drained pasta with a drizzle of olive oil if you’re not serving right away.
Avoid burning garlic: Cook over medium-low heat, but watch it closely as garlic burns quickly and turns bitter.
Fresh herbs last: Stir in herbs at the end to keep their bright color and flavor.
The information shown above is an estimate provided for your convenience by an online calculator. It should not be considered as a substitute for a professional nutritionist's advice. Please see our complete Nutritional Information Disclaimer.