How to Make a Dairy-Free Alfredo Sauce with Unsweetened Cashew Milk

Quick answer

Yes, you can make a rich and creamy dairy-free alfredo sauce using unsweetened cashew milk. The key is to use a high-quality cashew milk with no added oils or thickeners, and to thicken the sauce with a roux or a starch slurry to get the classic silky texture.

Craving a creamy, indulgent alfredo sauce but need to skip the dairy? Unsweetened cashew milk is your secret weapon. It brings a naturally silky, rich texture that mimics traditional cream-based sauces without any gums, oils, or fillers. Whether you're vegan, lactose-intolerant, or just looking to lighten up your pasta night, this guide will show you how to make a dairy-free alfredo sauce that's both satisfying and simple.

The trick to a great dairy-free alfredo isn't just swapping in any plant milk—it's choosing the right one and using a technique that builds body and flavor. With unsweetened cashew milk, you get a neutral, slightly sweet base that lets garlic, nutritional yeast, and seasonings shine. Follow these steps, and you'll have a creamy, dairy-free pasta sauce that rivals the original.

Why Unsweetened Cashew Milk Works for Alfredo

Unsweetened cashew milk is ideal for savory sauces because it's naturally creamy and low in sugar. Unlike sweetened or flavored plant milks, it won't clash with garlic, herbs, or nutritional yeast. The lack of added oils and thickeners means you control the fat and consistency, so your sauce can be as light or indulgent as you like.

When choosing a cashew milk for cooking, look for one with minimal ingredients—just cashews, water, and a pinch of salt. This ensures a clean flavor and a smooth texture that won't separate or curdle when heated. MALK's Unsweetened Cashew Milk, made with organic cashews and almonds for body, is a great option for a silky, versatile sauce.

• Use unsweetened cashew milk to avoid a sweet or artificial taste in your sauce.
• Check the label for added gums or oils; they can affect the texture and mouthfeel.
• If your sauce needs more richness, add a splash of olive oil or vegan butter.

Building the Flavor Base

Start with a classic flavor base: sauté minced garlic in a little olive oil or vegan butter until fragrant. This creates a savory foundation that pairs perfectly with the cashew milk. Add a pinch of salt and pepper to season early, so the flavors meld as the sauce simmers.

To get that cheesy, umami flavor without dairy, nutritional yeast is essential. It adds a savory, slightly cheesy taste that makes the sauce taste authentic. You can also add a splash of lemon juice or white wine for brightness, and a dash of nutmeg for warmth—just be careful not to overpower the delicate cashew flavor.

• Sauté garlic over medium heat until golden but not burned—burnt garlic turns bitter.
• Nutritional yeast is the key to a cheesy flavor in vegan alfredo.
• A pinch of nutmeg adds depth; start with a tiny amount and adjust.

Thickening Without Cream or Flour

Cashew milk is thinner than heavy cream, so you'll need to thicken it to get that classic alfredo consistency. The easiest method is a roux: melt vegan butter, whisk in an equal amount of all-purpose or gluten-free flour, and cook for a minute before adding the cashew milk. This creates a smooth, lump-free base that thickens beautifully.

If you prefer a gluten-free option, use a cornstarch or arrowroot slurry. Mix one tablespoon of starch with two tablespoons of cold water, then whisk it into the simmering sauce. The sauce will thicken as it heats, but be careful not to overheat, as it can thin out again. Whisk constantly to avoid lumps.

• A roux gives a richer flavor and thicker texture than a slurry.
• For a gluten-free slurry, use cornstarch or arrowroot and whisk well.
• Simmer gently—high heat can cause the sauce to separate.

Step-by-Step: Dairy-Free Alfredo with Cashew Milk

1. Cook the garlic in fat: Heat 2 tablespoons of olive oil or vegan butter in a skillet over medium heat. Add 3-4 minced garlic cloves and sauté for 1-2 minutes until fragrant and lightly golden. Do not brown the garlic too much, as it can become bitter. Checkpoint: The garlic should be soft and aromatic, not browned or crisp.
2. Make a roux (or slurry): Sprinkle 2 tablespoons of all-purpose flour over the garlic and stir constantly for 1 minute to cook out the raw flour taste. For a gluten-free option, mix 1 tablespoon of cornstarch with 2 tablespoons of cold water in a small bowl and set aside. Checkpoint: The roux should be smooth and bubbly; the slurry should be lump-free.
3. Add the cashew milk gradually: Slowly pour in 2 cups of unsweetened cashew milk while whisking continuously. If using a slurry, pour the cashew milk first, bring to a simmer, then whisk in the slurry. Keep whisking to prevent lumps from forming. Checkpoint: The sauce should be smooth and start to thicken within 2-3 minutes.
4. Season and simmer: Stir in 3-4 tablespoons of nutritional yeast, a pinch of salt, black pepper, and a pinch of nutmeg. Reduce the heat to low and let the sauce simmer for 5-7 minutes, stirring occasionally, until it reaches your desired consistency. Checkpoint: The sauce should coat the back of a spoon; adjust seasoning to taste.
5. Combine with pasta: Toss the sauce with cooked pasta (like fettuccine) and a splash of reserved pasta water. The starch helps the sauce cling to the noodles. Serve immediately with fresh parsley or vegan parmesan if desired. Checkpoint: The sauce should be creamy and coat the pasta evenly—if too thick, add a splash of pasta water.

Products We Recommend

• Unsweetened Cashew Milk: Cashew aims to please. Silky, smooth, and endlessly versatile. Our cashew milk is made with organic cashews, almonds for body, and a pinch of salt—nothing more. It’s creamy comfort in a glass. The addition of almonds gives extra body, helping your alfredo sauce achieve a creamier texture without needing thickeners.
• Shelf-Stable Unsweetened Cashew Milk: Rich, creamy and ready when you are. Shelf-stable Cashew is ideal for stocking up without compromise. No added oils, no thickeners, just organic cashews, water, and a pinch of salt. Your pantry has never looked so clean. Keep a carton in your pantry for spontaneous pasta nights—no need to worry about refrigeration, and the clean ingredient list ensures a pure flavor in your sauce.

Making a dairy-free alfredo sauce with unsweetened cashew milk is easier than you think. With the right ingredients and a few simple techniques, you can enjoy a creamy, satisfying pasta dish that's completely plant-based. Experiment with garlic, herbs, and nutritional yeast to make it your own—your taste buds (and your dinner guests) will thank you.