Over high heat, bring a large pot of salted water to a boil for the pasta. Once boiling add your dry spaghetti to the pot and cook the pasta following the package directions for timing.
12 oz spaghetti
Make the Aglio e Olio
Once your pasta is about 70% cooked, place a large pan on the stove over low heat. Next, add the olive oil for 30 seconds, then add the tomatoes to the pan. After about two minutes, add the garlic and red pepper flakes and cook for 1 more minute. The garlic should gently sizzle if the heat is at the correct temperature - turn the heat up or down slightly if necessary.
6 tablespoon extra virgin olive oil, 20 grape tomatoes (whole), 5 large cloves garlic, minced, 1 ½ teaspoon red pepper flakes
Remove the pan of garlic and tomatoes from the heat. Next, remove the cooked spaghetti from the pot to a strainer and drain, reserving a little (half cup or so) pasta water. Once drained, immediately add the spaghetti to the pan with the garlic and tomatoes. Toss to combine thoroughly and add some pasta water if it looks too dry.
Garnish (optional) and Serve
Drizzle additional extra virgin olive oil and, if desired, add grated Parmesan as well. You can also garnish with sunflower microgreens and roasted sunflower seeds (optional).
Add anchovies: Melt 3 or 4 anchovy fillets into the olive oil along with the garlic. They dissolve completely and add a deep, savory umami that doesn't taste fishy. This is a classic Roman variation.
Swap in shrimp: Toss in a handful of peeled shrimp when you add the garlic. They'll cook in about 2 minutes and turn the dish into a protein-forward meal. Season them with a little extra salt and lemon juice.
Use different greens: Instead of microgreens, toss in a handful of arugula, baby spinach, or torn basil right before serving. The residual heat will wilt them slightly and add a fresh, peppery or herbaceous note.
Try lemon zest: Add the zest of one lemon to the pan when you toss the pasta. The citrus brightens the dish and cuts through the richness of the oil without adding liquid.
You can also skip the tomatoes entirely and go back to the original garlic and oil version. Some people prefer it that way. Others love the sweetness and color the tomatoes bring.
Storage:
How to store leftover aglio e olio:
Transfer leftover pasta to an airtight container and refrigerate for up to 3 days. The pasta will absorb some of the oil and dry out slightly, but you can fix that when you reheat.
How to reheat leftover aglio e olio:
Reheat in a skillet over medium-low heat. Add a splash of water or olive oil to loosen the pasta and help it steam back to life. Toss frequently until warmed through, about 3 to 4 minutes. If it looks dry, add a little more oil and a pinch of salt.
The texture won't be quite as good as fresh, but it'll still be satisfying. The tomatoes will be softer and the garlic more mellow, which some people actually prefer.
Can you freeze leftover spaghetti aglio e olio?
We don’t recommend freezing this pasta dish.
Top Tips from the Pros:Professional cooks make this dish look effortless because they've internalized a few habits that home cooks often skip.
They taste the pasta water: Before adding the pasta, pros taste the water to make sure it's salty enough. If it doesn't taste like the ocean, they add more salt. Properly salted pasta water is the foundation of flavor.
They keep pasta water on standby: Before draining the pasta, they reserve a cup of the starchy pasta water. If the finished dish looks dry or the sauce isn't clinging, they add a splash of hot pasta water and toss again. The starch acts as a binder and creates a silky consistency which makes a huge difference in the finished dish.
They pull the pan off the heat early: Garlic continues cooking in the residual heat of the pan even after you turn off the burner. Pros pull the skillet off the heat the moment the garlic hits pale gold. This prevents carryover browning and keeps the flavor sweet, not bitter.