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Pasta & Noodles

Simple and Creamy Vegan Pumpkin Alfredo

The perfect vegan fettuccine alfredo recipe for fall! Enjoy these decadent cheesy noodles with creamy vegan pumpkin alfredo sauce for any autumn dinner.

Prep: 30 minutes
Cook: 20 minutes
Total: 50 minutes
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Recipe Index | Cook | Pasta & Noodles

Simple and Creamy Vegan Pumpkin Alfredo

The perfect vegan fettuccine alfredo recipe for fall! Enjoy these decadent cheesy noodles with creamy vegan pumpkin alfredo sauce for any autumn dinner.

My Vegan Take on Trader Joe’s Pumpkin Alfredo Sauce

Every Autumn, many people post about the pumpkin alfredo sauce from Trader Joe’s. I tried it once, and it’s great, but when I was eating dairy-free a few years ago, I needed a vegan option. I tried a lot of Alfredo sauce recipes on the internet, with everything from potatoes to cauliflower in the sauce. None of these sauces taste like creamy, cheesy pumpkin Alfredo, though. Well, the secret to vegan pumpkin alfredo sauce is simple, it’s sauerkraut brine! Cheese is fermented, so the secret ingredient for this vegan pasta with pumpkin alfredo sauce makes sense. Here’s what you’ll need to make this delicious vegan Alfredo sauce:

  • Cashews
  • Pumpkin puree
  • Nutritional Yeast
  • Garlic
  • Sauerkraut brine
  • Nutmeg
  • Black Pepper
  • Salt
  • Plant-Based Milk

Vegan Pumpkin Alfredo

This cheesy Alfredo pasta sauce is relatively easy to make! I suggest two key things to make this vegan Alfredo sauce perfect.

First, I recommend using a high-speed blender like a Vitamix to ensure a smooth sauce. Don’t forget to stop the blender and scrape down any pieces stuck to the side.

Second, make sure to soak the cashews for a long enough time and use raw cashews. I suggest soaking the cashews overnight in cool water (about 12 hours). If you are hurrying and want to make this recipe quickly, you can soak the cashews in boiling water for 30 minutes instead.

vegan pumpkin alfredo sauce being stirred with a wooden spatula in a large white pot.

Vegan Fettuccini Alfredo with Pumpkin Alfredo Sauce

You can use any pasta shape, but I enjoy fettuccini or linguine pasta for this recipe. Pictured here is organic linguine. I think bucatini pasta or rice pasta (if you are GF) would work great here too.

cheesy vegan fettuccine alfredo pasta twirled around a fork

Things to Pair with Vegan Pumpkin Alfredo

  • Customizable Sourdough Focaccia Bread From Scratch
  • Sourdough Garlic Bread Dinner Rolls
  • No-Knead Sourdough Bread with Sauerkraut and Onion
cheesy vegan fettuccine alfredo pasta twirled around a fork
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Simple and Creamy Vegan Pumpkin Alfredo

The perfect vegan fettuccine alfredo recipe for fall! Enjoy these decadent cheesy noodles with creamy vegan pumpkin alfredo sauce for any autumn dinner.

  • Prep: 30 minutes
  • Cook: 20 minutes
  • Total Time: 50 minutes

Ingredients

Sauce 

  • 1 Cup Raw Cashews, Soaked and Drained
  • 1/2 Cup Pumpkin Purée
  • 2 Tablespoons Nutritional Yeast
  • 1/4 Cup Sauerkraut Brine
  • 1/4 Teaspoon Nutmeg
  • 1 Teaspoon Black Pepper
  • 1 Teaspoon Salt
  • 1/2 Cup Plant-Based Milk 

Pasta

  • 16 Ounces of Fettuccine Noodles
  • 2 Tablespoons Olive Oil
  • 3 Tablespoons Garlic, Minced

Instructions

  1. To soak cashews, place them in a glass bowl, pour boiling water over them and let them soak for 1 hour.
  2. Boil water and cook the noodles according to the directions on the package.
  3. In a high-speed blender combine all of the sauce ingredients, and blend on high until smooth.
  4. In a pot over medium heat, add the oil and garlic. Cook until the garlic starts to brown.
  5. Reduce the heat to low and add the blended sauce to the garlic and oil. Stir continuously until the sauce is heated. (You can add more milk if you feel the sauce is too thick).
  6. Add the pasta to the sauce and toss to combine. 
  7. Serve and enjoy! 

Did you make this recipe?

Please leave a 5-star review below if you loved it! Tag @cultured.guru on Instagram

 

Nutrition information is auto-calculated and estimated as close as possible. We are not responsible for any errors. We have tested the recipe for accuracy, but your results may vary.

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Kaitlynn Fenley Author, Educator, Food Microbiologist
Kaitlynn is a food microbiologist and fermentation expert teaching people how to ferment foods and drinks at home.
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hey i’m kaitlynn, i’m a microbiologist and together with my husband jon we are cultured guru.

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Fermentation is a gift from the microbes of this e Fermentation is a gift from the microbes of this earth.

When we had a food business, I could never shake the feeling that fermentation is not meant to be sold to you from a fluorescently lit grocery shelf in an endless cycle of waste. Fermentation is meant to be cultivated in your home, with your hands, with intention and love in a sustainable, grateful practice of reciprocity and nourishment. 

This is the story of how we got here. 

After so many lessons learned, our small fermentation business is now value aligned, peaceful, fulfilling, and happy.  It often seems like the gut feelings (the microbes within us) guided us in the right direction. To teach. 

You can learn for free on our blog, or you can enroll in our online courses (we extended our new year sale!) Either way, with me as your teacher, you’ll learn to adopt a holistic perspective on the microbial ecosystems that influence our food, lives, and the planet.
My favorite topic I teach in our online course is My favorite topic I teach in our online course is called Fermentation Variables. The whole lesson is centered around the fact that there are six main variables that influence the outcome of fermentation.

Here they are, in no particular order:

Sugar
Salt
Oxygen
Acidity
Temperature
Time

Temperature and time depend on each other most closely. 

that means, for all of our foods and drinks that ferment at room temp, things slow way down in the winter cold. 

The fermentation timeline is simply longer when it’s colder (and faster when it’s hotter). The microbes, kind of like us, make things happen slowly in the cold winter. 

I think this is yet another sign from nature that we’re supposed to rest and be gentle and gracious with deadlines, work, and not rush things this time of year. 

Let it be slow, it’ll still be great, it just takes a little more patience and time. 

If you’re looking to start fermentation as an analog hobby in the new year, our courses are 40% off right now! You can use code NEWYEARS at checkout. (Yes, you learn online, but it’s delicious, long form content + the skills are life long). What you learn empowers you to get off the computer/phone and go ferment some delicious foods and drinks. 

Touching cabbage and dough is just as good as “touching grass” lol 

Let me know if you have questions about our courses or just fermentation in general in the comments!

#fermentation
Yes cooking kills the microbes, but idc. I mean, I Yes cooking kills the microbes, but idc. I mean, I care, but in a “thank you for your service microbes” kinda way. 🫡

Cider braised pork and sauerkraut is a perfect choice for New Year’s or any winter meal! I lovvveee pairing it with butternut squash polenta bc it’s full of vitamin C for cold and flu szn. 

Eating pork and sauerkraut on New Year’s Day is a tradition. And I really do think it brings good luck and prosperity.

Get the recipe on our blog, linked in my profile and in story highlights! 

I’m really looking forward to creating more recipes like this in the new year, to show you all the joys of incorporating ferments into meals and recipes 😌✨ stay tuned! 

#newyear #sauerkraut #fermentation
One Christmas I gifted everyone in my family the N One Christmas I gifted everyone in my family the New York style sourdough bagels and they were thrilled. (The bagels we’re actually way under proofed, but I still gifted them and everyone loved them lol)

You can get the full recipe on my blog! And these can be made with discard and instant yeast or with just active starter.

 All the details are in the 5-star rated recipe on my website. 

#bagels #sourdough
This cookie dough is long-fermented overnight in t This cookie dough is long-fermented overnight in the fridge for the softest, most flavorful, melt-in your mouth sourdough gingerbread cookies.

For Christmas 2025, I tried something new with these cookies. I created a gingerbread sourdough starter to use in this recipe! I made it by feeding some of my established starter a mix that includes molasses and gingerbread spices. I just added the instructions for the gingerbread starter in the notes of my cookie recipe.

Get the full recipe and directions on my website! https://cultured.guru 

You can use the recipe index to see all my Christmas season recipes!

#gingerbread #sourdough
My gingerbread sourdough starter recipe 🎄✨ Like a My gingerbread sourdough starter recipe 🎄✨

Like and save for some fun Christmas sourdough baking! 

I made this up a few days ago to use in my soft sourdough gingerbread cookies. (cookie recipe is in my recipe index on my website!)

#sourdough #gingerbread
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