Vegan Pasta Sauce Recipe No Tomatoes: Creamy Cashew and Herb Infusion

I developed this sauce to solve a common problem: rich, creamy pasta without dairy or tomatoes. Cashews provide the perfect base, blending into a velvety texture that clings to noodles beautifully.

The beauty lies in its simplicity. Soaked cashews transform into a smooth paste, while fresh herbs add brightness. David, my official taste-tester, declared this his new favorite after the first bite.

This vegan creation delivers depth through garlic, nutritional yeast, and a touch of lemon. The result is a sophisticated sauce that elevates even the simplest pasta.

Keep it on hand for quick weeknight meals—it stores well and reheats perfectly.

Ingredients for Vegan Pasta Sauce Recipe No Tomatoes

Cashews and herbs create a luscious, dairy-free sauce perfect for pasta nights.

The cashews are non-negotiable here—raw, unsalted is what you want. I grab mine from Whole Foods bulk bins or Thrive Market online. Soaking is key for that velvety texture: cover with boiling water (not just warm) for 15 minutes. Nutritional yeast adds that cheesy depth, and Bragg is my go-to brand. Fresh herbs matter more than you’d think—basil and parsley brighten everything up.

No cashews? Raw macadamia nuts or silken tofu can work, but the flavor changes. Out of fresh herbs? Dried basil at one-third the amount, but skip parsley—it doesn’t translate well. Need more tang? Add white wine vinegar a teaspoon at a time. The olive oil should be something you’d drizzle on bread—California Olive Ranch is a solid grocery store pick.

Sauce keeps for 5 days in the fridge in a sealed jar. Freeze in ice cube trays for 3 months—pop out and toss straight into hot pasta. The lemon juice prevents browning, but give it a stir before using. Always taste before serving—salt needs can vary with different nut batches.

Step-by-Step Instructions for Vegan Pasta Sauce No Tomatoes

This method delivers a luscious, dairy-free sauce with vibrant herb notes and rich cashew creaminess.

Step 1: Soak and Blend the Cashew Base

Begin by draining the soaked 1.5 cups Raw Cashews—they should feel plump and soft after their 15-minute hot water bath. This soaking step is non-negotiable for achieving that ultra-smooth texture. Transfer them to a high-speed blender.

Add the 0.75 cup Water, 2 tbsp Extra-Virgin Olive Oil, and 4 cloves Garlic Cloves to the blender. I always use the full 0.75 cup of water for the perfect consistency—any less and the sauce becomes too thick, any more and it loses its luxurious body.

Blend on high for 1-2 minutes until completely smooth. Stop and scrape down the sides as needed. You’re aiming for a texture so silky it looks like heavy cream. The garlic should be fully incorporated with no visible chunks.

Step 2: Build Flavor with Nutritional Yeast and Citrus

With the blender still running on low, add the 0.25 cup Nutritional Yeast through the lid’s opening. This adds that essential cheesy, umami depth that makes the sauce taste rich and complex. Watch as the mixture turns a beautiful pale yellow.

Now add the 2 tbsp Fresh Lemon Juice, 1 tsp Sea Salt, and 0.5 tsp Freshly Ground Black Pepper. The lemon brightens all the flavors, while the salt and pepper bring everything into balance. Blend for another 30 seconds until fully homogeneous.

Step 3: Incorporate Fresh Herbs for Vibrancy

Stop the blender and add the 0.5 cup Fresh Basil Leaves and 0.25 cup Fresh Parsley. I pack the basil leaves tightly for maximum flavor impact. Pulse the blender 5-6 times until the herbs are finely minced but still visible as flecks in the sauce.

Here’s the thing—over-blending the herbs will turn your beautiful green sauce brown. Those little green specks not only look gorgeous but provide bursts of fresh flavor in every bite. Taste and adjust the Sea Salt and Freshly Ground Black Pepper if needed, though I rarely find it necessary.

Step 4: Finish and Adjust for Perfect Consistency

Transfer the sauce to a saucepan and warm over low heat for 3-5 minutes, stirring constantly. This step mellows the raw garlic slightly and allows the flavors to marry. If the sauce seems too thick, thin it with a splash of pasta water when you combine it with your noodles.

The sauce should coat the back of a spoon but still drip slowly. If it’s too thin, simmer for another 2 minutes—the nutritional yeast will help it thicken slightly as it cools. The final result should be creamy enough to cling to pasta but fluid enough to toss easily.

Use immediately while warm, or store in an airtight container in the refrigerator for up to 5 days. The flavors actually deepen after a day, making leftovers taste even better.

Make-Ahead Tips for Leftovers

Prep Ahead Strategy

I always soak the 1.5 cups Raw Cashews first thing in the morning if I’m making this sauce for dinner. Just cover them with boiling water and let them sit on the counter. This softens them perfectly for blending later. David swears he can taste the difference when I plan ahead this way. 💡

Batch Making

This sauce doubles beautifully. Use 3 cups Raw Cashews and scale all other ingredients proportionally. I make a big batch every Sunday and portion it into 16-ounce mason jars for the week. It keeps beautifully in the fridge for 5 days.

Freezing for Later

For long-term storage, spoon the sauce into ice cube trays and freeze solid. Once frozen, transfer the cubes to a freezer bag. Each cube is about 2 tbsp—perfect for single servings. It stays fresh for 3 months and thaws in minutes when dropped into hot pasta.

Day-Of Efficiency

If you’re short on time, soak the cashews in the 0.75 cup Water while you prep your other ingredients. The hot water soak only needs 15 minutes. I’ve tested this method countless times—it works perfectly when you’re in a rush.

Reheating Tips

Warm the sauce gently over low heat in a saucepan, stirring occasionally. If it thickens too much, thin it with a splash of pasta water or 1-2 tbsp of hot water. I find it reheats most evenly when added to hot, cooked pasta directly. 🔥

Frequently Asked Questions