Vegan Alfredo Sauce

This vegan Alfredo sauce is just as good as one made with cheese or butter! Creamy, rich, and flavorful, it's a great recipe for a classy date night in.

Vegan Alfredo Sauce over fettuccine

If you love creamy pasta that 1) tastes great and 2) makes you feel great, then you need this vegan Alfredo sauce in your life. It’s just as silky and rich as the classic kind, but it’s made with 100% plant-based ingredients. Nutritional yeast adds cheesy flavor, and lemon juice brightens it up. And instead of cheese, cream, or butter (or even vegan butter!), a secret ingredient gives it its ultra-creamy texture.

Any guesses?

It’s…cauliflower! If you’ve been following the blog for a while, you’re probably not surprised. I love blending this versatile veggie into creamy sauces that are smooth and luscious, but pretty darn good for you, too.

This vegan Alfredo sauce recipe calls for 10 ingredients and comes together in minutes. Whip it up on a weeknight, or serve it for a classy date night in. It’s simple, healthy, and absolutely delicious. Whether you’re vegan or not, I think you’re going to love it.

Vegan Alfredo Sauce recipe ingredients

Vegan Alfredo Sauce Recipe Ingredients

You only need 10 ingredients to make this vegan Alfredo sauce:

  • Cauliflower – It creates the sauce’s luscious creamy texture.
  • Cashews – Along with cauliflower, they make the sauce thick and creamy without any dairy. Make sure you use unsalted raw cashews in this recipe. Roasted cashews will give it a cashew-y taste.
  • Garlic – For sharp, savory depth of flavor.
  • Nutritional yeast – With its cheesy flavor, it replaces the Parmesan that you’d find in regular Alfredo sauce.
  • Lemon juice – For brightness.
  • Dijon mustard – It gives the sauce a savory, tangy kick.
  • Extra-virgin olive oil – It makes the sauce rich and smooth.
  • And salt and pepper – To make all the flavors pop!

Find the complete recipe with measurements below.

Cauliflower, cashews, and nutritional yeast in a blender

How to Make Vegan Alfredo Sauce

This vegan Alfredo sauce recipe is super easy to make! Here’s how it goes:

First, cook the cauliflower and the cashews. Yep, you read that right! I like to boil the cashews with the cauliflower so that they’re easy to blend. It has the same effect that soaking the cashews would, but it’s way quicker.

Bring a large pot of salted water to a boil, add the cauliflower and cashews, and boil for about 8 minutes. When the cauliflower is tender, drain the cashews and cauliflower and place them in a high-speed blender.

Vegan alfredo sauce in a blender

Next, blend! Add the olive oil, garlic, lemon juice, nutritional yeast, Dijon mustard, salt, and pepper to the blender. Pour in 1/2 cup water, and blend until the sauce is smooth and creamy.

Vegan Fettuccine Alfredo

Finally, serve! Cook a pound of fettuccine (or any pasta you like) in a large pot of salted boiling water. When the pasta is al dente, drain it, reserving 1 cup of the starchy pasta water.

Transfer the pasta back to the pot, pour in the sauce, and stir to coat. Add the pasta water, as needed, to thin the sauce to a smooth, silky consistency. Season to taste, and enjoy!

Bowl of vegan fettuccine Alfredo with fork

Vegan Fettuccine Alfredo Serving Suggestions

I love to serve this vegan fettuccine Alfredo with focaccia or crusty bread. That way, I can mop up any sauce that’s left at the bottom of my bowl! Then, I round out the meal with a salad or vegetable side dish.

To make a simple green salad, toss mixed greens with lemon vinaigrette, Italian dressing, or Greek salad dressing. Otherwise, serve this vegan fettuccine Alfredo with one these salad recipes:

Not in a salad mood? Pair your pasta with sautéed mushrooms, roasted broccoli, or Brussels sprouts instead!

Vegan Alfredo sauce recipe

More Delicious Vegan Pasta Recipes

If you love this recipe, try one of these vegan pastas next:

Vegan Alfredo Sauce

rate this recipe:
4.85 from 38 votes
Prep Time: 5 mins
Cook Time: 20 mins
Serves 4 to 6
This vegan fettuccine Alfredo is creamy, rich, and flavorful. It's easy enough to make on a weeknight, but elegant enough for a classy date night in. You'll love it whether you're vegan or not!

Ingredients

  • 12 ounces cauliflower florets*
  • ½ cup raw cashews
  • ¼ cup extra-virgin olive oil
  • ½ cup water
  • 2 garlic cloves
  • 2 tablespoons fresh lemon juice
  • 2 tablespoons nutritional yeast
  • 1 teaspoon sea salt
  • ½ teaspoon Dijon mustard
  • Freshly ground black pepper
  • 1 (16-ounce) package fettuccine pasta
  • Chopped fresh parsley

Instructions

  • Bring a large pot of salted water to a boil. Add the cauliflower and cashews and boil until the cauliflower is fork-tender, about 8 minutes. Drain and transfer to a blender. Add the olive oil, water, garlic, lemon juice, nutritional yeast, salt, mustard, and several grinds of pepper. Blend until creamy.
  • Cook the pasta in a large pot of salted boiling water according to the package directions, or until al dente. Drain the pasta, reserving 1 cup of the starchy pasta water.
  • Transfer the pasta back to the pot, pour the sauce over the pasta and toss to coat. If the sauce is too thick, add some of the reserved pasta water until it’s creamy.
  • Sprinkle with parsley and season to taste.

Notes

*about ⅔ florets from 1 small cauliflower

65 comments

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Rate this recipe (after making it)




  1. I made this recipe after seeing a similar one on a YouTube channel I watch: RebeccaJean; a DIY Er who eats vegan. I was salivating watching her make it; and I finally got to make it too. So yummy!
    I’m Sicilian, and love my food; so for me to comment on anything is huge. If u want to try healthy Alfredo, give this a try:)

  2. Holly Sackett
    04.20.2022

    5 stars
    This was great! My husband is a meat and potatoes kinda guy and I was a bit hesitant to serve this becasue he is very aware when I’m trying to make things that are vegan, but I’ve been trying to serve my family a more plant based diet. Neither my husband or my kids had any idea this wasn’t a cream and cheese based sauce. I added lots of nutmeg (cause I love nutmeg in cream sauces). I will certainly make it again. Another win from your site. Thank you.

  3. Susan Collison
    02.28.2022

    5 stars
    Accidently left a comment on the other recipe ~ I made the vegan Alfredo Fettuccine. Who knew there could be a heart-healthy recipe of what is otherwise a “heart attack on a plate”. It was fun making the creamy sauce, and I was not aware that there was a pasta shortage until I tried to find Fettuccine noodles! But after going to three different grocery stores, I got ‘er done, and it was delicious!

  4. Susan Hammond
    02.28.2022

    Made this Vegan Alfredo Fettuccine last night for dinner. Absolutely delicious, rich, creamy and satisfying. Amazing it is 100% plant based. To top it off the first thing my husband said to me this morning was how good it was! Glad there is some leftover to enjoy again today!

    • Susan Hammond
      02.28.2022

      5 stars
      Oops! Forgot to rate! Five stars!!!

    • Jeanine Donofrio
      02.28.2022

      Aw, I’m so glad you both loved it!

  5. Bridget Cassun
    02.23.2022

    5 stars
    This was delicious and so quick and easy! The sauce was so creamy, rich but not too rich like sauces with all nuts; the addition of cauliflower was delicious! The store was out of fresh cauliflower so I had to go with frozen; it worked deliciously!! Did I say it was delicious???

  6. Ruth
    02.22.2022

    5 stars
    Made this for Valentine’s Dinner (served over zucchini noodles for me and fettuccine noodles for my love). I was amazed by the silkiness of the alfredo sauce. Easy to prepare and tasted fantastic. I shared your recipe with a friend, who prepared over the weekend and also loved it! So happy I found you. Looking forward to preparing more dishes from Love and Lemons.

  7. Sibyl Holland
    02.21.2022

    5 stars
    I made this for the February Cooking Club challenge and it was absolutely delicious! Creamy and finger licking good.

  8. Stevie Smith
    02.15.2022

    5 stars
    Yummy! Lighter than regular Alfredo but just as creamy and delicious!

  9. Shira
    02.14.2022

    5 stars
    This recipe is simple and delicious and it’s a great way to get my cauliflower-hating kid to eat cauliflower!

  10. LeeAnn Dobro
    02.12.2022

    5 stars
    I honestly wasn’t expecting much from a vegan alfredo, but this recipe blew away my expectations. The taste and texture were wonderful. I will definitely make it again. I only made 8 oz of pasta so still have some leftover sauce in the fridge. Can’t wait to throw it on some steamed veggies!

    • Jeanine Donofrio
      02.13.2022

      I’m so glad you loved it!

  11. Teresa
    01.24.2022

    5 stars
    I absolutely love this recipe. My hubby and I have dairy allergies. We thought we would’ve able to have Alfredo sauce ever again. Wrong!
    I recently made a similar one from a different website, and I can honestly say, I definitely prefer this recipe!
    It’s rich and creamy and is just prefect! One question: How long will it last in the fridge?

    • Jeanine Donofrio
      01.26.2022

      Hi Teresa, I’m so glad you loved it! I’d keep it in the fridge for 3-4 days.

  12. Bethany
    01.23.2022

    5 stars
    As a lifelong lover of fettuccine alfredo, I was pretty skeptical that a vegan version of it could ever fit the bill. There are plenty of vegan versions of things that I like, but I figured there was NO WAY alfredo sauce could be one of them. However, I recently had to cut out fresh dairy for health reasons, so I figured what the heck, I’ll give this a try. IT WAS AMAZING. I’m so thrilled to be wrong! For anyone reading the comments here wondering if this recipe could fool a non-vegan, the answer is YES.

    A few things to note that I did differently:
    – I did not have fresh lemons (oops), had to use bottled juice
    – I roasted about 8 cloves of garlic beforehand and used that instead of the 2 cloves of fresh garlic (highly recommend!)
    – My local market only had roasted cashews, so I had to use that instead of raw. It didn’t make the flavor overly cashew-y, but it did add to the richness & depth of the flavor, along with the roasted garlic.
    – Added 1/4 tsp nutmeg

    Anyway, I never leave comments on recipes (shame on me, I know) but this one was such a hit that I had to. Thank you so much for coming up with this! You’re absolutely insane for using cauliflower to make cream sauce, and yet it somehow works. You rock!

  13. Melanie
    11.21.2021

    5 stars
    Delicious! Mine wasn’t creamy. What did I do wrong? Maybe need to add water or a little more oil? My cauliflower went bad so I used frozen cauliflower w/ lemon me garlic sauce. Bursting with flavor!

    • Melanie
      11.21.2021

      Lemon and Garlic! – not lemon me garlic. Lol

    • Jeanine Donofrio
      11.21.2021

      Hi Melanie, if it’s too thick in the blender, you could add more oil, water, (or the starchy cooking water after you cook your pasta), and then blend a little longer.

  14. Mackenzie
    09.21.2021

    1 star
    Made it for dinner and had to throw out the whole thing, it tastes like veggie and garlic hummus, I don’t recommend it

  15. Nelle
    09.19.2021

    5 stars
    I make this sauce and keep it in the frig for anytime I want a creamy something in a dish. It is a great base sauce that can become sour cream for tacos, tartar sauce for vegan crab cakes, and a cream sauce for pasta…so versatile and yummy! Thanks.

  16. Jay S
    08.20.2021

    I made this last night… wow. I was very impressed with the alfredoiness (?) of this dish. Thanks for the awesome recipe!

  17. Linda G.
    08.14.2021

    5 stars
    I made extra of the version with Parmesan cheese and froze the leftover sauce. It was delicious. I added basil flowers with the parsley. I own both your cookbooks and usually refer to them after your blog recipes.

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Photograph of Jeanine Donofrio and Jack Mathews in their kitchen

Hello, we're Jeanine and Jack.

We love to eat, travel, cook, and eat some more! We create & photograph vegetarian recipes from our home in Chicago, while our shiba pups eat the kale stems that fall on the kitchen floor.