This Cashew Pesto transforms raw cashews and fresh basil into a vibrant, creamy sauce. It's ready in just 20 minutes and bursts with deep, layered flavor.
As a recipe developer who's tested dozens of cashew pesto variations, I've perfected the technique for this recipe: blanching basil preserves its bright green color, while flash-boiling the cashews creates a silkier texture than traditional overnight soaking.
A Quick Look At The Recipe
- Total Time: 20 minutes
- Recipe Difficulty: Easy
- Cooking Method: Stovetop + Food Processor
- Main Ingredients: Raw cashews, fresh basil, garlic, lemon
- Dietary Info: Vegan, gluten-free, dairy-free, vegetarian
- Serves: 8
- Calories: 180 per serving
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Featured Review
So good. I was pleasantly surprised with more of the cheesy flavor than I was expecting! Thank you for sharing & excited to try more recipes!
- kaylin
My secret to delicious vegan basil pesto? White miso paste. It adds an umami depth that nutritional yeast just can't match. It enriches the flavor without overpowering the fresh basil, giving your pesto a savory, complex profile that tastes anything but ordinary!
If you love pesto, try my Ramp Pesto, Pesto Without Pine Nuts, or Pasta al Pesto!
Why You'll Love This Recipe
- Budget-Friendly: Cashews cost 60% less than pine nuts and provide a similar rich, buttery flavor.
- Silky Smooth: Flash-boiling cashews for 15 minutes creates a creamier emulsion than 12-hour cold soaking.
- Savory & Rich: White miso paste adds fermented depth that elevates this beyond basic pesto.
- Versatile: Use on pasta, sandwiches, pizza, or as a marinade for grilled chicken thighs.
Key Ingredients
- Raw Cashews: Boiling for 15 minutes softens the nuts and removes enzyme inhibitors, creating a smoother blend than soaking. Their neutral, buttery profile lets basil shine.
- Fresh Basil: Blanching for 10 seconds deactivates enzymes that cause oxidation. This keeps your pesto sauce with cashews bright green.
- White Miso Paste: This fermented soybean paste adds savory umami and saltiness. It's more complex than nutritional yeast and mimics the depth Parmesan brings to traditional pesto.
- Fresh Lemon Juice: Acidity brightens flavors and also prevents oxidation. Always use fresh-squeezed; bottled lemon juice tastes flat.
- Extra Virgin Olive Oil: Use high-quality oil here; it's a primary flavor component. Fruity, peppery oils work best.
Substitutions & Variations
- Cheesy Version: If you prefer a traditional cheesy base, omit the white miso paste and add ¼ cup freshly grated Parmesan. This gives your cashew pesto a rich, savory flavor that mirrors classic pesto while keeping the sauce creamy and vibrant. Keep in mind it will no longer be vegan if you incorporate cheese.
How To Make Cashew Pesto
- Step 1: Fill a medium pot with 3 cups of water and add 1¼ cups of raw cashews. Once boiling, reduce to medium and simmer for 15 minutes to soften the nuts. Drain the cashews after 15 minutes in a colander and let them cool for a couple of minutes. They don't need to be cold, just cooled down.
- Step 2: Bring a small pot of water to a boil and drop 1 cup of basil leaves into the boiling water for exactly 10 seconds, then immediately transfer to an ice bath for a moment (a bowl of water with ice cubes in it). This preserves the bright green color. Squeeze out excess water. In a food processor, combine the drained cashews, blanched basil, 4 microplaned garlic cloves, ¼ cup fresh lemon juice, 1 tablespoon white miso paste, and ½ teaspoon salt. Pulse 10-12 times until roughly chopped.
- Step 3: Scrape down the sides if needed, and slowly drizzle in the extra virgin olive oil while pulsing until fully incorporated. If the pesto is too thick, add 1-2 tablespoons of water or more olive oil. Taste and adjust salt or lemon juice as needed. Once it's finished, transfer to a jar or airtight container and store with a thin layer of olive oil on top to prevent oxidation.
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Expert Tips
- Blanch the Basil: I made two batches, one with fresh basil, one with blanched basil. Blanched basil stayed neon green after 24 hours, while fresh turned olive-drab after just 6 hours. Blanching deactivates polyphenol oxidase, the enzyme responsible for browning.
- Don't Skip Boiling Your Cashews: Boiling the cashews provides an irresistible creaminess and smooth texture that cold soaking can't match, making your pesto luxuriously silky.
- Don't Over-Blend: Pulse the pesto until just smooth. Over-blending can make it too thin, lose its vibrant texture, and even turn slightly bitter.
- Store With a Layer of Olive Oil: Pour a thin layer of olive oil over the surface of your cashew pesto before storing. This prevents oxidation and keeps the pesto bright green for longer.
Soaking Overnight vs. Flash Boiling Cashews
I tested three methods: 12-hour cold soak, 15-minute boil, and no soak. Using a standard food processor, I rated grittiness on a 1-10 scale (10 = smoothest).
- Boiled cashews scored 9/10
- Cold-soaked scored 6/10
- Unsoaked scored 3/10
Boiling breaks down fibers more effectively than soaking, producing a silkier emulsion even in mid-range blenders.
Cashew Pesto Frequently Asked Questions
Yes! Cashews are an excellent pine nut substitute. They're more affordable, equally creamy, and have a milder, buttery flavor that lets basil shine. Boil them for 15 minutes for the smoothest texture.
Absolutely. Cashew nut pesto is a popular vegan alternative to traditional pesto. The key is properly softening the cashews either by boiling for 15 minutes or soaking overnight to achieve a creamy consistency.
Use raw cashews. Roasted cashews add a toasted flavor that competes with basil's freshness. Raw cashews have a neutral, buttery taste that creates a more authentic vegan basil pesto flavor profile.
The biggest mistakes:
1. Not softening cashews enough, which creates a gritty texture.
2. Using fresh basil without blanching it turns brown within hours.
3. Over-processing, which makes the pesto bitter and warm.
4. Skipping the acid, lemon juice is essential for brightness and preservation.
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📖 Recipe
Cashew Pesto
Ingredients
Creamy Basil Sauce
- 1 ¼ Cup Raw Cashews soaked or boiled
- 1 Cup Basil packed
- ¼ Cup Olive Oil extra virgin
- 4 Cloves Garlic microplaned
- ¼ Cup Lemon Juice fresh
- 1 Tablespoon White Miso Paste
- ½ Teaspoon Salt
Instructions
- Fill a medium pot with 3 cups of water and add 1¼ cups of raw cashews. Once boiling, reduce to medium and simmer for 15 minutes to soften the nuts. Drain the cashews after 15 minutes in a colander and let them cool for a couple of minutes. They don't need to be cold, just cooled down.
- Bring a small pot of water to a boil and drop 1 cup of basil leaves into the boiling water for exactly 10 seconds, then immediately transfer to an ice bath for a moment (a bowl of water with ice cubes in it). This preserves the bright green color. Squeeze out excess water. In a food processor, combine the drained cashews, blanched basil, 4 microplaned garlic cloves, ¼ cup fresh lemon juice, 1 tablespoon white miso paste, and ½ teaspoon salt. Pulse 10-12 times until roughly chopped.
- Scrape down the sides if needed, and slowly drizzle in the extra virgin olive oil while pulsing until fully incorporated. If the pesto is too thick, add 1-2 tablespoons of water or more olive oil. Taste and adjust salt or lemon juice as needed. Once it's finished, transfer to a jar or airtight container and store with a thin layer of olive oil on top to prevent oxidation.
Notes
- Blanch the Basil: I made two batches, one with fresh basil, one with blanched basil. Blanched basil stayed neon green after 24 hours, while fresh turned olive-drab after just 6 hours. Blanching deactivates polyphenol oxidase, the enzyme responsible for browning.
- Don't Skip Boiling Your Cashews: Boiling the cashews provides an irresistible creaminess and smooth texture that cold soaking can't match, making your pesto luxuriously silky.
- Don't Over-Blend: Pulse the pesto until just smooth. Over-blending can make it too thin, lose its vibrant texture, and even turn slightly bitter.
- Store With a Layer of Olive Oil: Pour a thin layer of olive oil over the surface of your cashew pesto before storing. This prevents oxidation and keeps the pesto bright green for longer.
Nutrition
Save This Recipe!
I'll email this recipe to you, so you can come back to it later!
Carrie says
Love love this recipe. Thank you for sharing.
Kaylin says
So good. I was pleasantly surprised with more of the cheesy flavor than I was expecting! Thank you for sharing & excited to try more recipes!
Nora says
Such an easy recipe & so good! I added some almond milk for a thinner consistency. Love the creaminess of the cashews!!!