This easy aglio e olio features al dente spaghetti coated in a velvety garlic-infused sauce with a touch of heat from red pepper flakes. It's a gloriously simple Italian classic you just can't miss.
Bring a large pot of water to a rolling boil. Add the salt and cook the spaghetti according to the package directions until al dente, meaning it should still have a slight bite in the center.
Before draining the pasta, carefully scoop out 1½ cup (360ml) of the pasta water and set it aside (you may not use all of it). Then drain the spaghetti.
While the pasta cooks, pour the olive oil into a wide skillet or sauté pan and place it over low heat. Add the sliced garlic and cook gently for 2-3 minutes, stirring often, until it is fragrant and lightly golden. Do not let it get dark brown, or it will taste bitter.
Add the red pepper flakes and stir for about 30 seconds so they flavour the oil.
Pour about ½ cup (120ml) of the reserved pasta water into the pan. Raise the heat to medium and let it bubble for a few seconds. This helps the oil and water combine into a light sauce.
Add the drained spaghetti to the pan. Toss continuously with tongs or a spoon for 1-2 minutes so the pasta absorbs the sauce. Add a little more pasta water as needed until the pasta looks glossy and lightly coated, not dry and not sitting in oil. I used around ½ cup (120ml).
Turn off the heat. Add the parsley, lemon juice, and lemon zest, then toss again until everything is evenly mixed.
Serve immediately, with vegan Parmesan on top if desired.
Notes
Don't forget the salt. Seriously. This flavours the pasta itself and the sauce, since the pasta water is a key component of the sauce.
Keep the heat low. When sautéing the garlic, keep the heat low and keep on stirring for the best mellow, nutty garlic flavour.
Be generous with the pasta water. As you toss the spaghetti in the sauce, keep adding pasta water until each and every noodle has a smooth, glossy coating.
Storing leftovers. Seal the fully cooled leftovers in an airtight container and store in the fridge for up to 5 days or in the freezer for up to 3 months. Reheat over low heat on the stove or in the microwave (add a little water or broth if needed).