This is my authentic fettuccine Alfredo sauce, the true Roman style version made with just butter, Parmesan, and pasta water. No cream here, this is the original Italian method and it comes together faster than it takes to boil your pasta. The result is a glossy, unbelievably silky sauce that tastes restaurant level but takes minutes.
Hi! I’ve tested so many ways of melting Parmesan into butter, and this is the method I come back to every time. An authentic fettuccine Alfredo is made the traditional Roman way, no cream, no garlic, just good butter, Parmigiano and pasta water. It’s simple and truly foolproof, and you won’t believe how creamy it becomes without adding a drop of cream.
What is authentic fettuccine Alfredo?
Authentic Alfredo, known in Rome as ‘fettuccine al burro’ is made with only butter, Parmigiano Reggiano and pasta water. That’s it. The heat of the pasta emulsifies everything into a silky sauce with a creamy texture but no added cream. American versions often use cream and garlic, but the Italian version is much lighter, simpler and honestly more delicious.
If you love simple, silky pasta sauces, you’ll also love my Cacio e Pepe and my White Wine and Butter Pasta. Both have the same easy emulsification technique. To make the dish even more authentic you could make your own fettuccine pasta with my Homemade Pasta Dough.
Ingredients for pasta alfredo
Butter - I usually cook with unsalted butter so I can control the seasoning, but in a three ingredient sauce like this I actually prefer salted. It adds an extra layer of flavor and gives the sauce that rich, savory depth Alfredo is known for. If you only have unsalted, just season well at the end.
Parmesan cheese - Authentic Alfredo uses Parmigiano Reggiano, and if you’ve got it, use it. But honestly? This is the kind of cozy pasta I want to eat on the couch in my comfiest clothes, so a good everyday Parmesan works perfectly too.
The important part, grate it very finely. Freshly grated melts beautifully, pre-grated won’t emulsify and will leave you with clumps. Please don’t use it here.
Pasta Water - Aka liquid gold. The starch in the water is what turns butter and cheese into a silky, glossy sauce that clings to every strand of pasta. Always reserve a mug before draining, you’ll use more than you think. If you need a refresher on how to salt and cook pasta properly, head to my How to Cook Pasta Perfectly guide.
How to make this recipe
Full ingredients, step-by-step instructions and a short tutorial video are in the recipe card below.
Cook your pasta of choice in a large pot of salted water according to package instructions. I tend to undercook dried pasta by a minute.
ONE: Melt butter in a large skillet over medium heat and when sizzling add ⅓ cup of pasta water and whisk vigorously to combine. A flat whisk is great for this. Let it bubble away to thicken slightly for 1 - 2 minutes.
TWO: Add your cooked pasta and another ⅓ cup pasta water and toss.
THREE: Let it bubble away very gently for 30 seconds or so.
FOUR: Turn the heat down to low and sprinkle the grated parmesan in an even layer on top of the pasta.
FIVE: Leave it to melt on top of the pasta for 1 minute or so then use tongs to spin the pasta around and around quicky.
SIX: Keep tossing/spinning until a smooth sauce appears (only about 10 - 20 seconds). Serve straight away.
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How to get parmesan to melt into a sauce
Melting Parmesan into cream is easy, it just dissolves. But melting Parmesan into a butter and pasta water sauce is a whole different story. It can clump, turn stringy, or seize up if you’re not careful, which is why so many people think authentic Alfredo is difficult. Here are my top tips:
- Grate the Parmesan very finely. The finer the cheese, the smoother the sauce. I blend mine in a small smoothie maker until it turns into a fluffy crumb. A microplane or the star side of a box grater also works, just avoid the large grater size, it won’t melt properly.
- Toss the pasta first, then flatten it out. Once the pasta goes into the butter sauce, give it a quick toss and then spread it into an even layer in the pan. You want the cheese to hit the hot pasta directly, not the butter underneath.
- Add the Parmesan in an even layer. On a low heat, sprinkle the cheese evenly over the pasta.
- Let it melt gently, then swirl. Leave the cheese to soften for about a minute, then use tongs to swirl and spin the pasta until everything emulsifies into a glossy, smooth sauce. Serve it straight away.
A few more expert tips
- Undercook your pasta by a minute from package instructions so it can bubble away in the sauce and still be al dente when served.
- Salt your pasta water well, it's your one chance to season your pasta from the inside out. I have the perfect ratio in my Guide to Cooking Pasta.
- A little black pepper (¼–½ teaspoon) and some lemon zest on top are lovely for serving.
Common questions
No. Authentic Italian Alfredo sauce is made with only three ingredients: butter, Parmigiano Reggiano and pasta water. That’s it. Heavy cream is added to American style Alfredo because it stabilises the sauce and makes it easier to serve in restaurants, but it’s not traditional. When you melt the cheese gently with the pasta water, it becomes just as creamy, without the heaviness of cream.
Alfredo is traditionally served with fettuccine in Rome. The wide, flat noodles catch the glossy sauce beautifully. Spaghetti, linguine or pappardelle all work well with this method too, but fettuccine is the classic.
Yes! While add-ins aren’t traditional, this is a great base recipe for extras.
Sliced cooked chicken, sautéed mushrooms, peas, spinach or roasted broccoli all work really well stirred through the finished sauce.
Want some other pasta dishes to try?
To build out your repertoire of traditional Italian pasta dishes, try one of these next or see my complete Pasta Collection for all of my recipes in one place.
Did you make this recipe?
I would LOVE it if you could leave a review and star rating down below. Also please tag me on Instagram if you share a photo of the dish!
Recipe
Authentic Fettuccine Alfredo (3 Ingredients, No Cream)
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Ingredients
- 200 grams dried pasta or 300 grams fresh
- 100 grams butter
- 70 grams parmesan cheese finely grated (see notes)
- ⅔ cup pasta water
Optional extras
- ¼ - ½ teaspoon black pepper
- Lemon zest to serve
Instructions
- Cook your pasta in a pot of well salted boiling water. Reserve a cup of pasta water before draining.
- When the pasta has 5 minutes to go, start the sauce. Timing it so the pasta is done right when you need to add it to the sauce will be easier the second time. See notes.
- Melt the butter in a large fry pan that will fit all the pasta in it at the end over a medium heat.
- When sizzling add ⅓ cup pasta water and the pepper if using and whisk really vigorously. I like to shake the pan with my left hand and whisk with my right.
- Let it gently bubble away for 1 - 2 minutes, whisking every so often. It shouldn't be boiling, just a gentle simmer so adjust heat as you need.
- Add your cooked pasta in with another ⅓ cup pasta water and toss well. Let it gently bubble for 30 seconds.
- Turn the heat down to lowest and add the grated parmesan cheese in an even layer on top of the pasta and leave it alone.
- Let it gently melt on top of the pasta for 1 - 2 minutes.
- With tongs, swirl the pasta around and around really quickly (watch the video below!) until you get a well emulsified sauce that clings to the pasta. It doesn't take long.
- Season to taste with salt and pepper.
- Serve straight away and top with more parmesan if you wish and some lemon zest is a great addition.
Ann says
This turned out great, even though I had to sort of eyeball the ingredient amounts! I added some leftover salmon, and when I remarked that it might be better with chicken hubby said “no”.
Raina Clark says
We returned from Italy three weeks ago, promptly purchased a pasta maker, and this was the first sauce recipe we tried with our homemade pasta. It was literal perfection! I added a small quantity of white truffle oil that we brought home from Italy because, why not? We also put some grilled chicken alongside this that was grilled with charcoal and just lightly drizzled with olive oil, salt and pepper. The slightly smoky chicken chunks along with the sauce, made music in our mouths! Thank you for a great recipe!
Emilie Pullar says
Hi Raina, this makes me so happy! So cool your trip inspired you so much. The truffle oil addition is perfection. Thank you so much for making it 🙂
khylan says
I love your good pasta
Morgan Johnson-Koehn says
This is my go to pasta recipe for my daughter who “doesn’t like sauce” on her noodles. She still hasn’t figured it out, and loves it every time!
Emilie Pullar says
hahaha I love this so much!
Kira Wilson says
Made this last night and I’m still dreaming about it ??
Catriona Routley says
This was unctuous, delicious and oh so simple! My kids (they eat a lot of pasta!) said it was the best they’ve ever had!
Emilie Pullar says
I actually get so excited when kids approve of recipes!
Anna says
This is so easy and so delicious!! Love the melting method