Last Updated August 20, 2024

Aglio, olio, peperoncino is a pasta found often throughout Tuscany, and even more often on my table for lunch. It originally hails from Napoli but has become beloved throughout Italy.

It’s simple, so simple, with the classic version requiring just 4 ingredients: spaghetti, garlic, olive oil, and a hot pepper. It’s great to whip up in a pinch because it’s quick and the ingredients are those you probably have in your pantry. It can be on the table in about as long as it takes to boil and cook pasta, plus 2 minutes for mixing. Because of its simplicity, as many Italian dishes are, attention to the quality and freshness of your ingredients will really make this dish shine. (Especially with that olive oil, nice and shiny. :)

There are many slight variations, but they hardly vary more than an ingredient or two. Some use fresh hot peppers, some use chili flakes; some versions call for bread crumbs, others a bit of fresh parsley added at the end, some say to mince the garlic, others slice. Based on these variances, you can always decide to play a bit to find exactly how you like to eat your aglio, olio, e peperoncino pasta.

The version that follows I learned from my husband, the fresh pasta expert. We usually use fresh hot peppers, but will also use chili flakes if we don’t feel like running to the store. It’s pretty close to the classic recipe, with one exception. We add a bit of grated Parmigiano Reggiano and it catapults the pasta to the next level. OH YES, cheese!

A note about using fresh peppers: I’m not actually sure what kind of peppers I use here in Italy. At the supermarket there are usually bell peppers “peperoni” and hot peppers “peperoncini” with no indication what variety they might be. Bell peppers come in red and green, but not always at the same time, and the hot peppers are usually red OR green, depending on the season. I suppose they’re serrano or a similar variety because they’re spicy but not overly so, although they do vary. Apparently Italians are not pepper connoisseurs, you won’t find jalapeño, habanero, serrano, and other pepper types readily available year round! If I were writing this recipe in Italian I would just put “peperoncino,” and everyone would know to get the only kind of peperoncino available from the store. In English recipes we are used to being told more specifics, and writing “1 hot pepper” would not be as helpful. So I wrote serrano on the recipe, but just be aware that you can play around with the kind you use if you want, especially if you think serrano might be too spicy for you!

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Recipe Adapted from the Italian Classic

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Garlic, Oil, and Pepper Pasta - Aglio, Olio, e Peperoncino

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Garlic, Oil, and Pepper Pasta - Aglio, Olio, e Peperoncino

Serves about 4-6

Ingredients:

500g / 16 oz spaghetti
84g / 6 Tbsp olive oil
4 garlic cloves
1 serrano pepper, or spicy pepper of choice
generous 1/4 cup /30g grated parmesan cheese

Directions:

Bring water to boil in a large pot over high heat. Just before boiling, add some salt.
While water is heating up, mince the garlic and dice the pepper. Add the oil, garlic, and pepper to a small pot or pan.
When the water boils add spaghetti and cook according to instructions on package. Meanwhile, place the small pan of oil over low heat.
Simmer oil for 5-8 minutes; remove from heat when garlic is fragrant and starts to appear to dry with barely golden edges.
When pasta is done cooking, drain, reserving about 1/2 cup / 120g of pasta water.
Return drained pasta to the pot and immediately add oil mixture, reserved pasta water, and cheese. Working quickly, use two forks to mix and toss spaghetti until oil, cheese, and water have coated the pasta in a light, creamy sauce. Serve immediately.

Jenny’s Notes:

These measurements are approximate, we never measure when making this, but this is pretty close to our normal. So if you decide you want to use 5 cloves garlic and 2 jalapeños, that’s fine, too, because this is not an overly precise recipe!
For less heat, remove the seeds of the pepper before dicing. If using chili flakes, don’t simmer them in the oil but add to the pasta with the cheese at the end.
Look for parmigiano reggiano, which is the best. It can only be called so if it is made and aged in the designated area in Italy according to their regulations. Even if you are a world-class parmesan maker but make it in Wisconsin, it cannot legally be called parmigiano reggiano. This pasta is also delicious with other sharp, aged Italian cheeses. I like a mixture of aged pecorino and parmigiano.
Keep a close eye on the simmering oil, the garlic goes quickly from perfectly cooked (barely golden) to burnt (anything golden or beyond.) Even if you happen to burn your garlic, it only takes a few minutes to start the oil, garlic, and pepper over again and could still be ready before the pasta even finishes cooking.
One of the great things about making this is that even if you add too much pasta water, it will eventually evaporate out while mixing. One of the first times I ever made this solo, I added way too much and had a good inch or so sitting in the bottom of my pan. I had already added the oil and cheese and it was too late to dump the extra out. So I tossed and mixed for several minutes, and what do you know, the water eventually evaporated and mixed in, and I ended up with a wonderfully creamy and cheesy sauce.
When making this in Italy I always use the classic spaghetti option, as this is called spaghetti aglio e olio traditionally. However, the typical spaghettis you find in grocery stores in America don’t hold up as well, so I usually opt to use linguine in the USA.

Garlic, Oil, and Pepper Pasta - Aglio, Olio, e Peperoncino

Yield 6-8

Author Jennyblogs

Prep time

25 Min

Total time

25 Min

Garlic, Oil, and Pepper Pasta - Aglio, Olio, e Peperoncino

A simple and classic pasta dish served throughout Italy with plenty of garlic, olive oil, spicy pepper, and a bit of parmigiano reggiano.

Cook modePrevent screen from turning off

Ingredients

Instructions

Bring water to boil in a large pot over high heat. Just before boiling, add some salt.
While water is heating up, mince the garlic and dice the pepper. Add the oil, garlic, and pepper to a small pot or pan.
When the water boils add spaghetti and cook according to instructions on package. Meanwhile, place the small pan of oil over low heat.
Simmer oil for 5-8 minutes; remove from heat when garlic is fragrant and starts to appear to dry with barely golden edges.
When pasta is done cooking, drain, reserving about 1 cup / 237g of pasta water.
Return drained pasta to the pot and immediately add oil mixture, reserved pasta water, and cheese. Working quickly, use two forks to mix and toss spaghetti until oil, cheese, and water have coated the pasta in a light, creamy sauce. Serve immediately.

Notes

These measurements are approximate, we never measure when making this, but this is pretty close to our normal. So if you decide you want to use 5 cloves garlic and 2 jalapeños, that’s fine, too, because this is not an overly precise recipe!
For less heat, remove the seeds of the pepper before dicing. If using chili flakes, don’t simmer them in the oil but add to the pasta with the cheese at the end.
Look for parmigiano reggiano, which is the best. It can only be called so if it is made and aged in the designated area in Italy according to their regulations. Even if you are a world-class parmesan maker but make it in Wisconsin, it cannot legally be called parmigiano reggiano. This pasta is also delicious with other sharp, aged Italian cheeses. I like a mixture of aged pecorino and parmigiano.
Keep a close eye on the simmering oil, the garlic goes quickly from perfectly cooked (barely golden) to burnt (anything golden or beyond.) Even if you happen to burn your garlic, it only takes a few minutes to start the oil, garlic, and pepper over again and could still be ready before the pasta even finishes cooking.