Lemon Basil Pesto Sauce

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Introducing my go-to homemade pesto recipe – a simple, perfect Lemon Basil Pesto Sauce! Made with fresh basil, toasted pine nuts, parmesan cheese, & extra-virgin olive oil, this classic Genovese-style basil pesto is balanced with lemon zest & juice for brightness that isn't too lemony. Made with just 6 ingredients & ready in 5 minutes or less thanks to a food processor, this simple pesto is perfect for everything from pasta to burgers to pizza night!

Easily Vegetarian & Vegan.

An overhead macro shot of a jar of lemon basil pesto garnished with lemon zest on a white plate atop an off-white surface. Lemon wedges sit beside the jar, and basil leaves can be seen in the background.

The Tried and True Homemade Basil Pesto We Use on Everything!

I grow a ton of fresh basil during the summer months and am always looking for ways to make the most of my harvest. Of course, fresh basil pesto is always at the top of that list!

There are 2 pesto recipes that I like to rotate between throughout the summer: my Damn Good Kale Pesto and this simple Lemon Basil Pesto.

This bright and herbaceous sauce is a pretty classic Genovese-style basil pesto, but a twist of lemon makes it especially irresistible. Fresh lemon zest and juice brightens up the pesto without making it taste too lemony at all.

This bright and herbaceous sauce is a classic Genovese-style basil pesto, but a twist of lemon makes it especially irresistible.

Instead, it cuts through the richness of toasted pine nuts, parmesan cheese, and olive oil to create the perfect balance in flavor. As a bonus, the acidity also preserves the sauce’s vibrant green color! Plus, this lemon basil pesto couldn’t be easier.

It takes about 5 minutes to throw together with the help of your food processor (no mortar and pestle necessary!) and from there you can use it with just about anything. A quick and simple pasta dinner is an obvious choice, but we also love using it for everything from Grilled Shrimp Skewers to the perfect summer pasta salad. Pesto just makes everything better! 🌿

What is Pesto?

Originating in 16th century Genoa, a capital city in Northwest Italy, pesto is a staple Italian sauce traditionally prepared by crushing walnuts with herbs and garlic to form an herbaceous, paste-like sauce. In fact, the name pesto actually comes from the Italian word pestare, which means to crush or pound! Today, you can find many different varieties of pesto made with other herbs, nuts, and greens, like kale pesto, sundried tomato pesto, avocado pesto, and even spicy jalapeño pesto!

Key Ingredients

The best Italian dishes rely on in-season and high-quality ingredients to create a ton of craveable flavor, and this lemon basil pesto recipe is no exception.

It comes together with 6 simple ingredients – most of which are probably already in your pantry or summer garden!

An overhead shot of ingredients displayed on a white textured surface on a cutting board and a variety of dishes: basil, parmesan, lemons, olive oil, pine nuts, garlic, salt and pepper.
This flavorful sauce comes together with just 6 simple ingredients: fresh basil, lemon, garlic, toasted pine nuts, parmesan cheese, and extra virgin olive oil.
  • Fresh basil – The star ingredient! A generous amount of fresh basil is a must-have for any Genovese-style pesto sauce, making this recipe a great way to use up your summer garden harvest. Whether you grow it yourself or buy it from the store, you’ll need about 1 ½ cups fresh basil leaves (loosely packed). Make sure to remove the stems – basil stems are a bit too tough for a smooth and creamy pesto.
  • Pine nuts – Also known as pignolias or pinoli nuts, pine nuts are soft, buttery, subtly sweet nuts harvested from the cone of a pine tree. They add a beautiful nuttiness to basil pesto, especially when toasted. To toast pine nuts on the stovetop, simply heat the nuts in a dry pan over medium heat, shaking frequently so they don’t burn. They’ll be golden and fragrant in a few minutes. Easy substitute for pine nuts. ⇢ If you prefer not to use pine nuts, hardy walnuts are the best substitute, though pistachios and almonds also work well.
  • Lemon – Both juice and zest! Lemon is our secret ingredient here. It keeps the basil vibrantly green while also cutting through the richness of the nuts and cheese. It balances the basil pesto out, rather than making it taste super lemony.
  • Garlic – It wouldn’t be pesto without it! This basil pesto recipe uses 6 whole cloves for a good punch of garlicky flavor. Feel free to adjust based on your tastes.
  • Parmesan – Parmesan adds nutty flavor that complements the pesto sauce beautifully. You can easily swap out parmesan to make the lemon basil pesto vegetarian or vegan – more guidance below!
  • Extra virgin olive oil – Since pesto is a raw, oil-based sauce, using the best olive oil you can afford is key to making all the flavors shine. Premium extra-virgin olive oil gives the lemon basil pesto a rich, fruity, well-rounded flavor and extra-smooth texture. You don’t have to break the bank here – but do select a good quality oil. DeLallo EVOO is my go-to – it’s imported from Italy, tastes amazing, and super affordable.

Simple Substitutes for Vegetarian or Vegan Basil Pesto

While most pesto recipes are naturally meatless, the use of parmesan cheese does not guarantee that the sauce is naturally vegetarian or vegan. Why? ⇢ Like many hard cheeses, parmesan is traditionally made with an animal enzyme known as rennet, which comes from the stomach of a cow, goat, or lamb. It’s essential in the cheese-making process, typically added after heating cow’s milk in order to kickstart the separation process.

The good news? To ensure a vegan or vegetarian pesto sauce, you can easily swap parmesan with rennet-free or dairy-free options:

  • For a vegetarian lemon basil pesto ⇢ Simply sub in a rennet-free parmesan.
  • For a vegan basil pesto ⇢ Use your favorite dairy-free parmesan instead.

My Favorite Pesto Shortcut – How to Make Basil Pesto With A Food Processor!

This lemon basil pesto recipe is ready in 5 minutes or less thanks to a food processor! Simply pulse it all together and enjoy – easy!

An overhead shot of a food processor with chopped pine nuts, sitting on a white surface. Olive oil and a bowl of pine nuts are sitting next to the food processor.
Pulsing the aromatics in 2 steps – pine nuts and garlic first, followed by basil, lemon, and cheese – helps break down the heartier ingredients without bruising delicate basil.
An overhead shot of a food processor full of lemon basil pesto atop a textured white surface. A bowl of grated parmesan, fresh basil leaves and olive oil sit alongside it.
Once the aromatics are finely chopped, slowly stream in olive oil with the food processor running until the lemon basil pesto reaches your desired consistency.
1

Finely chop the aromatics. Add the toasted pine nuts and garlic to your food processor, pulsing a few times to break them into smaller pieces. Then add in the basil, lemon and parmesan, continuing to pulse until the sharp blade of the food processor chops everything into fine pieces. Why? ⇢ Basil is a very delicate herb that bruises easily. Pulsing heartier ingredients like nuts and garlic first allows them to break down into small enough pieces to create a smooth sauce – all without overworking the basil!

2

Drizzle in the olive oil. With the food processor running, slowly stream in olive oil until the lemon basil pesto reaches the perfect consistency. Why? ⇢ Slowly streaming in the olive oil gives it time to mix  with the aromatics and form a smooth pesto. Keep adding until the sauce reaches your desired texture – feel free to make it as chunky or smooth as you like.

A close-up overhead shot of a spoon holding up basil pesto from a jar. The jar sits on a white plate with lemon wedges atop a white surface.
Stored in an airtight container in the refrigerator, lemon basil pesto sauce will keep for about 1 week.

Pesto Storage

This lemon basil pesto sauce stores beautifully, so feel free to prep it ahead of time – it’ll keep, stored in the refrigerator, for up to 1 week.

Pesto tip! ⇢ Be sure to store your pesto in an airtight container with a tight seal. With too much exposure to air, delicate basil has a tendency to oxidize and lose its beautiful green color, turning murky and brown instead. Pressing a layer of plastic wrap over the sauce before sealing also helps keep the oxygen away, preventing oxidization and browning.

How to Freeze Pesto?

When my summer garden is bursting with fresh basil at peak flavor, I love to prep a big batch of basil pesto with lemon, freezing it to enjoy throughout the fall and winter. Frozen properly, bright and herbaceous pesto will keep for up to 3 months. Check the Recipe Notes, below, for more guidance!

How to Use Basil Pesto (More Than Just Pasta!)

When you think of basil pesto, you probably think of pasta. I LOVE pesto pasta just as much as the next person, but if you’re only pairing pesto with noodles then you’re missing out.

A close-up overhead shot of pesto pasta with gold silverware on a pink and white floral plate.
For a quick and simple lemon pesto pasta, heat your pesto sauce in a large skillet over medium heat on the stovetop. Once it’s warm, toss in al dente pasta and bring it all together with some of the starchy pasta water – easy!

Plenty of dishes benefit from a punch of fresh and herbaceous, garlicky pesto – it’s the kind of sauce that makes everything better! Some of our favorite creative ways to use pesto sauce include…

A side-angle shot of a jar of lemon basil pesto being stirred with a spoon. The jar sits on a white plate with two lemon wedges.
Ready in 5 minutes or less, you can pair this all-purpose basil pesto sauce with just about anything – pasta, breakfast burritos, grilled dinners, chicken, seafood…pesto just makes everything better!

I can’t wait for you to try this Lemon Basil Pesto! It’s one of my absolute favorite recipes – we use it on everything here at the PWWB House! – and I know you’re going to love it just as much as we do.

If you do give it a try, be sure to let us know! Leave a comment with a star rating below. You can also snap a photo and tag @playswellwithbutter on Instagram. We LOVE seeing your PWWB creations! ♡ Happy cooking!

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A close-up overhead shot of a spoon holding up basil pesto from a jar. The jar sits on a white plate with lemon wedges atop a white surface.

5-Minute Lemon Basil Pesto Sauce

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  • Author: Jess Larson
  • Prep Time: 5 minutes
  • Cook Time: 0 minutes
  • Total Time: 5 minutes
  • Yield: 2 cups 1x
  • Category: Sauces & Condiments
  • Method: No-Cook
  • Cuisine: Italian
  • Diet: Gluten Free

Description

I grow a ton of fresh basil during the summer months and am always looking for ways to make the most of my harvest. Of course, fresh basil pesto is always at the top of that list. This Lemon Basil Pesto Sauce is my go-to pesto recipe.

This bright and herbaceous sauce is a pretty classic Genovese-style basil pesto, but a twist of lemon makes it especially irresistible. Fresh lemon zest and juice cuts through the richness of toasted pine nuts, garlic, parmesan cheese, and olive oil to create the perfect balance in flavor. As a bonus, its acidity preserves the basil’s vibrant green color!

The fun thing about fresh pesto is you can pair it with just about anything. Pesto pasta is an obvious choice, but we also love rolling it into breakfast burritos, folding it into juicy turkey burgers, serving it with grilled shrimp or chicken, and drizzling it over a tomato salad. Check the blog post, above, for lots more inspiration to get you started. ♡ Happy cooking!


Ingredients

Scale
  • 1 ½ cups loosely packed fresh basil (approx. 2 ounces basil leaves)
  • 3 tablespoons pine nuts, toasted
  • 6 cloves garlic
  • ½ lemon, zested and juiced
  • ⅓ cup finely grated parmesan cheese
  • ⅓ cup extra virgin olive oil
  • optional: up to 1 teaspoon crushed red pepper flakes
  • kosher salt and ground black pepper, to season

Instructions

  1. Pulse the garlic and pine nuts: To food processor, add the toasted pine nuts and garlic. Pulse just enough times to break the garlic and pine nuts into small pieces without pulverizing them.
  2. Prepare the lemon basil pesto: Add the basil, lemon zest and juice, and parmesan to the food processor. Season with ½ teaspoon kosher salt and ground black pepper as desired. Pulse to combine, stopping to scrape down the sides of the bowl as needed. With the processor running, slowly stream in the olive oil until your desired consistency is reached. Taste and adjust seasonings as needed.
  3. Serve: Enjoy your lemon basil pesto immediately. It’s, of course, great tossed into your favorite pasta dishes. (this Pesto Pasta with Seared Scallops is one of my all-time favorites). It’s also great in breakfast burritos, drizzled over a gorgeous summer salad, whipped into an herbaceous aioli, folded into a turkey burger, and so much more. Get creative and have fun with it – sky’s the limit!

Notes

  • Jess’ Notes and Tips:
    • Easy Recipe Variations: The beauty of pesto is its versatility. If you do not have pine nuts on hand, feel free to swap them out with toasted walnuts or pistachios. Similarly, you can use another hard cheese like asiago or pecorino romano in place of the parmesan. Doing so will result in a slightly different flavor profile, but your pesto sauce will be delicious nonetheless!
    • Dietary Restrictions: This lemon basil pesto sauce is naturally meatless. To ensure it’s vegetarian, be sure to use your favorite rennet-free parmesan. To take it a step further and make it vegan, opt for your favorite non-dairy parmesan.
  • Storage and Freezing: The wonderful thing about pesto is that it’s incredibly make-ahead friendly. Feel free to make a double batch and store in your refrigerator or freezer until you’re ready to use it.
    • Storage Instructions: Transfer the lemon basil pesto sauce to an airtight container or jar. Store in the refrigerator for up to 1 week.
    • Freezer Instructions: To freeze lemon basil pesto pesto, transfer to a freezer-safe container or divide between multiple freezer containers for smaller portions – these are my absolute favorite freezer containers! – and freeze up to 3 months. To thaw, place the frozen pesto sauce in the refrigerator overnight or submerge the freezer container in room temperature water for a quicker thaw.

Recipe and Food Styling by Jess Larson, Plays Well With Butter | Photography by Rachel Cook, Half Acre House.

Follow along with Plays Well With Butter on Instagram, YouTube, Facebook, and Pinterest for more unfussy recipes that pack a big punch of flavor!

Hi there, I'm Jess!

If there’s 1 thing to know about me, it’s this: I am head-over-heels in love with food. I’m on a mission to make weeknight cooking flavorful, fast, & fun for other foodies, & PWWB is where I share foolproof recipes that deliver major flavor with minimal effort. Other true loves: pretty shoes, puppies, Grey’s Anatomy, & my cozy kitchen in Minneapolis, MN.

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