I’m sharing my Spaghetti Aglio E Olio Recipe that uses only four ingredients and 20 minutes, and a simple adjustment of garlic and crushed red pepper flakes lets you personalize it exactly how you prefer.

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I never thought something so simple could be this addictive. The Spaghetti Aglio E Olio Recipe is my quick rescue when I want dinner that looks like I tried harder than I did.

It is basically spaghetti and lots of garlic, and I always tell people to tweak the garlic to their mood because its the secret dial that changes everything. As an Olio Pasta fan I love how tiny shifts in timing or garlic amount flip the whole thing from mild to thrilling.

I still burn a clove now and then, but those mistakes taught me the tricks I use most.

Ingredients

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Spaghetti: Pure carbs for steady energy, small protein amount, low fiber unless whole wheat used.
Olive oil: High in monounsaturated fats, silky mouthfeel, heart healthy, calorie rich though so use moderation.
Garlic: Pungent aromatics with allicin, possible immune support, adds savory bite not sweetness, can burn.
Red pepper flakes: Tiny flakes that bring heat and metabolism boost, almost no calories, no sweetness.
Parsley: Bright herb, vitamin C and K, freshens heavy oil, adds green lift and mild bitterness.
Parmesan: Hard cheese gives umami, salty tang, adds protein and calcium, not vegan and calorie dense.
Kosher salt: Essential for seasoning; enhances flavors, no nutrition in excess, use carefully.

Ingredient Quantities

Spaghetti, 400 g (about 14 oz) — enough for 3 to 4 people

Extra virgin olive oil, 1/3 to 1/2 cup (80 to 120 ml) depending how silky you like it

Garlic, 6 large cloves, more or less to taste (i usually use 6–8)

Crushed red pepper flakes, 1/2 to 1 teaspoon, or up to 1 tablespoon if you want serious heat

Kosher salt, for seasoning (about 1 tablespoon for the pasta water, adjust to taste)

Fresh flat leaf parsley, 1/4 cup loosely packed, optional but freshens it up

Freshly grated Parmesan or Pecorino, optional for serving, a little or a lot your call

How to Make this

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1. Bring a large pot of water to a rolling boil, add about 1 tablespoon kosher salt, then drop in 400 g (14 oz) spaghetti and cook until just al dente per the package directions. Before you drain, scoop out and reserve 1 to 1 1/2 cups of the hot pasta water.

2. While the pasta cooks, peel 6 large garlic cloves and slice them paper thin (you can use 6 to 8 if you like it stronger). Roughly chop about 1/4 cup loosely packed flat leaf parsley and grate some Parmesan or Pecorino if you plan to use it.

3. Warm 1/3 to 1/2 cup extra virgin olive oil in a wide skillet over medium low heat. Add the garlic slices and gently cook, stirring, until they’re fragrant and just pale golden, about 2 to 3 minutes. Watch them, dont let them burn or it’ll taste bitter.

4. Sprinkle in 1/2 to 1 teaspoon crushed red pepper flakes (or up to 1 tablespoon for serious heat), toast for about 10 to 15 seconds in the garlic oil, then immediately lower the heat or take the pan off the burner so the garlic doesnt keep browning.

5. Pour about 1/2 cup of the reserved hot pasta water into the skillet to loosen the oil and form a silky sauce. Stir to emulsify the oil with the water, scraping up any browned garlic bits.

6. Add the drained spaghetti to the skillet and toss vigorously for 1 to 2 minutes so the pasta soaks up the sauce. If it seems dry add more reserved pasta water, a few tablespoons at a time, until you reach the silky texture you like.

7. Stir in the chopped parsley and taste for salt, adding a little more if needed. If using cheese, toss in a handful of grated Parmesan or Pecorino now so it melts into the sauce.

8. Plate right away, drizzle a little extra virgin olive oil over each bowl if you want it richer, and pass extra red pepper flakes and cheese at the table. Enjoy it hot.

Equipment Needed

1. Large pot (4–6 qt) for boiling the spaghetti
2. Wide skillet or sauté pan (10–12 in) for the garlic oil and sauce
3. Colander to drain the pasta
4. Tongs or a long pasta fork for tossing the spaghetti in the pan
5. Heatproof measuring cup or small ladle to scoop and reserve pasta water
6. Sharp chef’s knife and cutting board for slicing garlic and chopping parsley
7. Microplane or fine grater for the Parmesan or Pecorino
8. Wooden spoon or silicone spatula to stir and scrape up those browned garlic bits, dont burn em

FAQ

Q: How do I stop the garlic from burning? A: Keep the heat low to medium, watch it closely, and pull the pan off the heat as soon as the slices turn light golden. Burnt garlic tastes bitter so don't walk away.

Q: How much pasta water should I save and why? A: Save about 1 cup of starchy pasta water. Add a few tablespoons at a time when you toss the spaghetti with the oil to make a silky, saucy coating that actually sticks to the noodles.

Q: Can I make this vegan? A: Yes just skip the Parmesan or use a vegan parm or toasted breadcrumbs for the salty, crunchy kick. The core flavors are olive oil, garlic and chili so it's already basically vegan.

Q: Can I use minced garlic instead of slices? A: You can, but minced garlic cooks much faster and can burn easier. If you use minced, lower the heat and add it later, or briefly sauté then remove from the heat before tossing with pasta.

Q: How spicy will 1/2 teaspoon of red pepper flakes be? A: About mild-medium for most people. Increase toward 1 teaspoon or even 1 tablespoon if you want serious heat. You can also taste and add more after tossing with the pasta.

Q: Can I add protein or veggies? A: Sure, shrimp, grilled chicken, or sautéed mushrooms work great. Add them after the garlic is done so they finish cooking in the flavored oil. If using anchovies add them at the start to melt into the oil for extra umami.

Spaghetti Aglio E Olio Recipe Substitutions and Variations

Spaghetti: swap for linguine, bucatini, or angel hair if you want a different mouthfeel; for low carb try spiralized zucchini (cook separately, they go soft fast).
Extra virgin olive oil: use light olive oil, avocado oil, or melted butter for a richer finish; garlic infused oil works great too if you want an extra boost.
Garlic: jarred minced garlic, roasted garlic cloves, or garlic paste are fine in a pinch; shallots give a milder, oniony twist if you dont like raw garlic heat.
Freshly grated Parmesan/Pecorino: substitute Grana Padano or Pecorino Romano, or use nutritional yeast or a vegan Parmesan for a dairy free version; or skip it and finish with a squeeze of lemon.

Pro Tips

1) Save at least a cup of that starchy pasta water before you drain. Add it back a few tablespoons at a time so the oil coats the noodles silky instead of greasy — if it looks oily, more water will fix it fast.

2) Watch the garlic like a hawk. Thin slices go from perfect to bitter in seconds, so pull the pan off the heat the moment they’re pale gold. If one bit starts to brown, toss a tablespoon of hot pasta water in to cool things down; saved my sauce more than once.

3) Toast the red pepper flakes for just a few seconds so they bloom, but dont let them burn. Or make a small batch of chili oil ahead by warming flakes in oil and keeping it in the fridge, that way you can control the heat and add it later.

4) Finish the pasta off the heat and toss vigorously so the oil and water emulsify into a creamy coating. Add cheese gradually if using so it melts in, and a bit of lemon zest or extra parsley brightens it up — serve right away, leftovers get gluey.

Spaghetti Aglio E Olio Recipe

Recipe by Tessa Jones

0.0 from 0 votes

Servings

servings

Calories

570

kcal

Equipment: 1. Large pot (4–6 qt) for boiling the spaghetti
2. Wide skillet or sauté pan (10–12 in) for the garlic oil and sauce
3. Colander to drain the pasta
4. Tongs or a long pasta fork for tossing the spaghetti in the pan
5. Heatproof measuring cup or small ladle to scoop and reserve pasta water
6. Sharp chef’s knife and cutting board for slicing garlic and chopping parsley
7. Microplane or fine grater for the Parmesan or Pecorino
8. Wooden spoon or silicone spatula to stir and scrape up those browned garlic bits, dont burn em

Ingredients

Spaghetti, 400 g (about 14 oz) — enough for 3 to 4 people
Extra virgin olive oil, 1/3 to 1/2 cup (80 to 120 ml) depending how silky you like it
Garlic, 6 large cloves, more or less to taste (i usually use 6–8)
Crushed red pepper flakes, 1/2 to 1 teaspoon, or up to 1 tablespoon if you want serious heat
Kosher salt, for seasoning (about 1 tablespoon for the pasta water, adjust to taste)
Fresh flat leaf parsley, 1/4 cup loosely packed, optional but freshens it up
Freshly grated Parmesan or Pecorino, optional for serving, a little or a lot your call

Directions

Bring a large pot of water to a rolling boil, add about 1 tablespoon kosher salt, then drop in 400 g (14 oz) spaghetti and cook until just al dente per the package directions. Before you drain, scoop out and reserve 1 to 1 1/2 cups of the hot pasta water.
While the pasta cooks, peel 6 large garlic cloves and slice them paper thin (you can use 6 to 8 if you like it stronger). Roughly chop about 1/4 cup loosely packed flat leaf parsley and grate some Parmesan or Pecorino if you plan to use it.
Warm 1/3 to 1/2 cup extra virgin olive oil in a wide skillet over medium low heat. Add the garlic slices and gently cook, stirring, until they're fragrant and just pale golden, about 2 to 3 minutes. Watch them, dont let them burn or it'll taste bitter.
Sprinkle in 1/2 to 1 teaspoon crushed red pepper flakes (or up to 1 tablespoon for serious heat), toast for about 10 to 15 seconds in the garlic oil, then immediately lower the heat or take the pan off the burner so the garlic doesnt keep browning.
Pour about 1/2 cup of the reserved hot pasta water into the skillet to loosen the oil and form a silky sauce. Stir to emulsify the oil with the water, scraping up any browned garlic bits.
Add the drained spaghetti to the skillet and toss vigorously for 1 to 2 minutes so the pasta soaks up the sauce. If it seems dry add more reserved pasta water, a few tablespoons at a time, until you reach the silky texture you like.
Stir in the chopped parsley and taste for salt, adding a little more if needed. If using cheese, toss in a handful of grated Parmesan or Pecorino now so it melts into the sauce.
Plate right away, drizzle a little extra virgin olive oil over each bowl if you want it richer, and pass extra red pepper flakes and cheese at the table. Enjoy it hot.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.