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Yes, you can put walnuts in pesto.
It might sound like a strange twist on the classic Italian sauce, but walnuts can absolutely be used in pesto.
In fact, they’re a common substitute for the traditional pine nuts, and they bring their own rich, earthy flavor to the mix.
If you’ve ever wondered if you can put walnuts in pesto because you’re out of pine nuts or just want a cheaper, heartier option, the answer is a resounding yes.
In this post, we’ll explore why walnuts work so well in pesto, how to use them, and what you need to know to make a delicious batch.
Let’s get into it.
Why Walnuts Work Perfectly in Pesto
Walnuts are a fantastic addition to pesto for several reasons, and once you try them, you might never go back to pine nuts.
Here’s why putting walnuts in pesto is a smart move:
1. They Mimic Pine Nuts Beautifully
Pine nuts are the traditional nut for pesto, but they’re expensive and sometimes hard to find.
Walnuts have a similar creamy texture when blended and a mild, slightly sweet, and earthy flavor that complements basil, garlic, and Parmesan.
They don’t taste exactly like pine nuts, but they provide that same nutty richness that makes pesto so satisfying.
That’s why so many cooks ask, “Can you put walnuts in pesto?” — because they’ve heard it works, and it does.
2. Walnuts Are Budget-Friendly
Let’s be honest: pine nuts can cost a small fortune.
Walnuts are much more affordable and widely available.
If you’re making pesto often, swapping in walnuts can save you serious money without sacrificing flavor.
You can put walnuts in pesto and still get a delicious, restaurant-quality sauce for a fraction of the price.
3. They Add Nutritional Value
Walnuts are packed with healthy fats, omega-3 fatty acids, and antioxidants.
When you put walnuts in pesto, you’re not just making a tasty sauce — you’re boosting its nutritional profile.
Pine nuts are nutritious too, but walnuts bring a unique set of benefits that make your pesto even healthier.
So if you’re looking for a reason to add walnuts to pesto, this is a great one.
4. They Bring a Distinct, Delicious Flavor
Walnuts have a slightly bitter, earthy taste that pairs beautifully with fresh basil and garlic.
They add depth and complexity to pesto, giving it a heartier, more rustic feel.
Some people even prefer the taste of walnut pesto over the traditional version.
If you’ve been asking, “Can you put walnuts in pesto?”, you’ll be happy to know that not only can you, but you might actually love the result even more.
How to Put Walnuts in Pesto (Step-by-Step)
Putting walnuts in pesto is easy, and you can do it with a classic recipe or your own twist.
Here’s a simple guide to making walnut pesto:
1. Toast the Walnuts First
Toasting walnuts before blending them enhances their flavor and removes some of their bitterness.
Spread them on a baking sheet and bake at 350°F for 5–7 minutes, or until fragrant.
Let them cool before using.
This step is optional, but it makes a big difference when you put walnuts in pesto.
2. Use a Classic Pesto Base
Start with fresh basil leaves, garlic, Parmesan cheese, olive oil, and salt.
Swap the pine nuts for walnuts — usually about 1/3 to 1/2 cup for a standard batch.
Blend everything in a food processor until smooth, adding olive oil gradually until you reach your desired consistency.
That’s all there is to it when you put walnuts in pesto.
3. Adjust the Ratios to Taste
Walnuts are a bit softer than pine nuts, so you might need slightly less oil.
Taste as you go and adjust the garlic, cheese, and salt to your liking.
You can also add a squeeze of lemon juice to brighten the flavors.
Remember, when you put walnuts in pesto, you’re in control of the final taste.
4. Try Different Walnut Varieties
English walnuts are the most common and work great.
Black walnuts have a stronger, more distinct flavor — use them if you want a bolder pesto.
Either way, you can put walnuts in pesto and get fantastic results.
Tips for Making the Best Walnut Pesto
If you’re going to put walnuts in pesto, here are a few tips to make it even better:
1. Use Fresh, High-Quality Ingredients
Great pesto starts with great basil, good olive oil, and fresh Parmesan.
The walnuts should be fresh too — stale nuts can ruin the whole batch.
When you put walnuts in pesto, freshness matters just as much as with any other ingredient.
2. Don’t Over-Blend
Over-blending can make pesto gummy or too smooth.
Pulse the ingredients until they’re combined but still have a little texture.
This is especially important when you put walnuts in pesto because they break down quickly.
3. Store It Properly
Walnut pesto keeps in the fridge for about a week in an airtight container.
You can also freeze it in ice cube trays for easy portioning.
Just press plastic wrap directly onto the surface to prevent browning.
That way, your walnut pesto stays fresh and ready to use whenever you need it.
4. Experiment with Other Nuts Too
If you like putting walnuts in pesto, try almonds, cashews, or pistachios next time.
Each nut brings its own personality to the sauce.
But walnuts remain one of the best and most popular choices.
So, Can You Put Walnuts in Pesto?
Yes, you can put walnuts in pesto, and it’s a delicious, affordable, and nutritious alternative to pine nuts.
Walnuts blend beautifully with basil, garlic, and Parmesan, giving you a rich, earthy sauce that works on pasta, sandwiches, and more.
Whether you’re out of pine nuts or just want to try something new, putting walnuts in pesto is a smart and tasty choice.
So go ahead, grab a handful of walnuts, and make your next batch of pesto with them.
You’ll be glad you did.