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Home » Recipes » Sauce + Seasoning

Cashew Alfredo Sauce (Vegan!)

Oct 28, 2025 by Kaitlin · Leave a Comment

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This 15-minute vegan Cashew Alfredo Sauce recipe is just as rich, creamy, and utterly delicious as the original! It's made with no dairy or egg, but captures the essence and flavor of this classic sauce. (Vegan, gluten-free, refined oil-free.)

Cashew alfredo sauce tossed with noodles on a white serving plate with fork

This easy vegan alfredo sauce doesn't skip a beat from the classic version! It's a dairy-free and egg-free alternative that's just as rich, creamy, and utterly delicious as the original.

Best of all, it's super quick and easy to prepare in just 15 minutes. We'll simply gather a few ingredients and blend them to silky smooth deliciousness. Then gently heat it on the stove. That's it!

The result is a luscious, creamy sauce that's ready to dazzle your pasta, pizza, potatoes, and more. It's also fantastic as a dipping sauce!

Raw nuts, vegetable broth, nutritional yeast, fresh lemon, miso, and seasoning ingredients laid out on a metal tray

Ingredients for Cashew Alfredo Sauce

For this recipe, you'll blend in a high speed blender then warm on the stovetop:

  • Raw cashews: This is the magical ingredient that creates a rich, creamy texture. I use raw unsalted cashews, then soak them to soften which creates a creamier consistency when blending. You can either soak the cashew nuts for several hours before blending, or use my "quick soaking" method with hot water which only takes about 10-15 minutes. (See the recipe below for guidance.)
  • Vegetable broth: Use low-sodium if desired.
  • Nutritional yeast: Traditional alfredo sauce typically includes Romano and Parmesan cheese (plus heavy cream and butter), so we swap that out for dairy-free nutritional yeast which has a cheesy flavor.
  • Onion powder: This adds lots of savory flavor to the sauce.
  • Cornstarch: Or you can use arrowroot powder instead. Either one works great. This helps thicken the sauce.
  • White miso: This adds bold, salty, umami depth of flavor. I highly recommend including it, but if you don't have it, then you'll need to add salt to taste.
  • Fresh lemon juice
  • Dijon mustard: I use two teaspoons, but you can adjust the amount as desired.
  • Garlic powder
Overhead view of preparing cashew alfredo sauce ingredients in a blender before blending

Customizing

Flavors: Add black pepper, a pinch of nutmeg, chives, dried rosemary, Italian seasoning, lemon zest, roasted red pepper, basil, mushrooms, or any other spices or herbs that sound good. Or you can give it a kick with a pinch of red pepper flakes.

Garlic: Switch up the garlic powder for fresh garlic cloves or even roasted garlic for a deeper flavor.

Thickness: This is a medium-thick sauce, so adjust as you see fit. For a thicker sauce, slightly decrease the broth or increase the cornstarch (or both). For a thinner sauce, use less cornstarch or omit it completely.

Pesto variation: A swirl of Vegan Walnut Pesto could also be added for fresh, herbaceous flavor.

Overhead view of cashew alfredo sauce cooking in a small pot with metal whisk

Serving

Pasta sauce: Create a classic fettuccine alfredo by tossing some of this warm sauce with cooked, drained fettuccine noodles. Or toss it with any other pasta shape like penne, fusilli, vegan tortellini, linguine, zucchini noodles, etc. You can also use it in baked pasta dishes. It's an easy, satisfying dinner paired with steamed broccoli, green beans, or roasted vegetables.

Pizza, potatoes, and beyond: Spoon it on your homemade pizzas, baked potatoes (or gnocchi), white lasagna, stuffed shells, casseroles, roasted vegetables, or whatever else sounds good. You can even use it as a dipping sauce for breadsticks, garlic bread, baked tofu, veggies, etc. I'd love to hear how you use it!

Storing

Allow the sauce to cool completely, then store it in an airtight container in the refrigerator. I find it keeps for about 4-5 days. I haven't tried storing this in the freezer, so can't say for sure how well the texture would hold up after thawing.

A wooden spoon lifting up cashew alfredo sauce from a small glass jar

For more inspiration, also browse all vegan sauce & seasoning recipes or cashew recipes.

Cashew alfredo sauce tossed with noodles on a white serving plate with fork

Cashew Alfredo Sauce (Vegan!)

This 15-minute vegan alfredo sauce is just as rich, creamy, and delicious as the original! It's made with no dairy or egg, but captures the essence and flavor of this classic sauce.
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Prep Time: 10 minutes minutes
Cook Time: 5 minutes minutes
Total Time: 15 minutes minutes
Author: Kaitlin - The Garden Grazer
Course: Sauce
Cuisine: Gluten-Free, Oil-Free, Vegan
Servings: 6 (1/3-cup servings)

Ingredients

  • 1 cup raw cashews (soaked*)
  • 1 1/2 cups vegetable broth
  • 3 Tbsp. nutritional yeast
  • 1 Tbsp. onion powder
  • 1 Tbsp. cornstarch (or arrowroot)
  • 1 Tbsp. white miso
  • 1 Tbsp. fresh lemon juice
  • 2 tsp. Dijon mustard
  • 1/4 tsp. garlic powder

Instructions

  • Add all ingredients to a high-speed blender. Blend for about 30 seconds or until completely smooth.
  • Then pour the sauce into a small saucepan on the stove. Heat over medium (whisking often to prevent clumping and sticking to the pan) for about 5 minutes or until the sauce is just warmed through and slightly thickened.
  • Remove from heat. Add salt and black pepper to taste if desired.

Notes

*Soaking cashews: Before blending, soak the cashews in room temperature water for at least 4 hours or overnight. Then drain and rinse before using. Or quick soak: Place cashews in a heat-safe bowl and carefully add hot/boiling water until cashews are covered. Let sit for about 10-15 minutes. Then drain and rinse.
Flavor variations: Add black pepper, nutmeg, garlic (fresh cloves or roasted), chives, dried rosemary, Italian seasoning, lemon zest, etc.
Thickness: This is a medium-thick sauce, so adjust as desired. For a thicker sauce, slightly decrease the broth, or increase the cornstarch/arrowroot. For a thinner sauce, use less cornstarch/arrowroot or omit it completely.
Yield: Recipe makes about 2 heaping cups sauce.

Nutrition Per Serving (Estimate)

Nutrition Facts
Cashew Alfredo Sauce (Vegan!)
Amount per Serving
Calories
152
% Daily Value*
Fat
 
10
g
15
%
Saturated Fat
 
2
g
13
%
Polyunsaturated Fat
 
2
g
Monounsaturated Fat
 
5
g
Potassium
 
239
mg
7
%
Carbohydrates
 
12
g
4
%
Fiber
 
2
g
8
%
Sugar
 
2
g
2
%
Protein
 
6
g
12
%
Vitamin A
 
128
IU
3
%
Vitamin C
 
2
mg
2
%
Calcium
 
15
mg
2
%
Iron
 
2
mg
11
%
* Percent Daily Values are based on a 2000 calorie diet.

Sodium content: This is omitted as I cannot provide an accurate number. I encourage you to calculate your own to provide a much more precise reading based on the exact ingredients, brands, and amounts you're using.

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If you're enjoying this vegan cashew alfredo sauce recipe, also check out:

  • Hummus (Oil-Free!)
  • Miso Tahini Dressing
  • Vegan Italian Dressing
  • Easy Peanut Sauce

Follow The Garden Grazer on Instagram, Pinterest, X (Twitter), or Facebook for more updates and inspiration.

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Hello, I'm Kaitlin!
I live in Montana and share vegan recipes that are easy and healthy. About Me →

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