Pesto Sauce
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Homemade pesto sauce is easy to whip up and delicious on just about everything—from pastas and pizzas to salads and sandwiches.
One of my favorite things about summer cooking is stepping out my back door to pick fresh herbs from my potted herb garden. It always amazes me how the tiny seedlings I plant in May grow into more herbs than I can possibly use up by August. When the basil is overflowing, it’s pesto time! Pesto, or pesto alla Genovese, is a vibrant, garlicky green sauce from Genoa, Italy. While the traditional method uses a mortar and pestle, these days, a food processor makes it a breeze. This versatile sauce is fantastic on everything—from pastas and pizzas to salads, vegetable soup, and sandwiches. What’s even better? It freezes like a dream, so you can enjoy a taste of summer all year long!
What You’ll Need To Make Pesto Sauce
Traditional pesto is made with garlic, nuts, salt, basil leaves, Parmigiano-Reggiano, and extra-virgin olive oil. It’s important to use top-quality ingredients, as the flavors really shine through.
For the cheese, be sure to use authentic Parmigiano-Reggiano from Italy; domestic Parmesan is not the same thing. You can always tell if the cheese is authentic by looking at the rind, which is embossed with the name over and over. If the cheese is already grated, it should be labeled “Parmigiano-Reggiano,” not “Parmesan.”
For the nuts, I use walnuts instead of the more traditional pine nuts for a few reasons. First, I always seem to have walnuts in the house (pine nuts can be very pricey). Second, in recent years an increasing number of people, including me, have fallen prey to a bizarre problem with pine nuts called Pine Mouth Syndrome, a bitter, metallic taste in the mouth that develops a day or two after eating pine nuts. It can last for weeks and make eating or drinking anything very unpleasant. (You can use pecans or almonds, too.)
Step-by-Step Instructions
To begin, combine the walnuts and garlic in the bowl of a food processor and pulse until coarsely chopped.
Add the basil leaves, salt, and pepper.
Process until finely chopped.
Then, with the food processor running, add the olive oil through the feed tube in a steady stream.
Add the Parmigiano-Reggiano.
Process again until smooth, and that’s your pesto sauce.
How To Store & Freeze Pesto
Use the pesto immediately or store it in a tightly sealed jar or air-tight plastic container, covered with a thin layer of olive oil (this seals out the air and prevents the sauce from oxidizing, which would turn it an ugly brown color). It will keep in the refrigerator for about a week.
Pesto can also be frozen in an airtight container for up to 6 months. I suggest dividing it into the compartments of an ice cube tray and freezing. Once frozen, remove the cubes from the tray and put in a sealable plastic bag or airtight container. You can add the defrosted cubes to vegetable soup, pasta salad with pesto, zucchini noodles, pesto pizza, eggs, sandwiches, and baked potatoes.
Video Tutorial
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The Best Basic Pesto
Homemade pesto sauce is easy to whip up and delicious on just about everything—from pastas and pizzas to salads and sandwiches.
Ingredients
- ⅓ cup walnuts
- 2 large garlic cloves, roughly chopped
- 2 cups packed fresh basil leaves
- ½ teaspoon salt
- ¼ teaspoon ground black pepper
- ⅔ cup extra virgin olive oil
- ½ cup grated Parmigiano-Reggiano
Instructions
- Place the walnuts and garlic in the bowl of a food processor fitted with a steel blade. Process until coarsely chopped, about 10 seconds. Add the basil leaves, salt, and pepper and process until mixture resembles a paste, about 1 minute. With the processor running, slowly pour the olive oil through the feed tube and process until the pesto is thoroughly blended. Add the Parmesan and process a minute more. Use pesto immediately or store in a tightly sealed jar or air-tight plastic container, covered with a thin layer of olive oil (this seals out the air and prevents the pesto from oxidizing, which would turn it an ugly brown color). It will keep in the refrigerator for about a week.
- Freezer-Friendly Instructions: Pesto can be frozen in an airtight container for up to 6 months. You can also divide your prepared pesto into the compartments of an ice cube tray and freeze. Once it’s frozen, remove the pesto cubes from the tray and put in a sealable plastic bag or airtight container. You can add the defrosted pesto cubes to soups, pasta dishes, eggs, sandwiches, and potatoes.
Nutrition Information
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- Serving size: 2 Tbsp.
- Calories: 159
- Fat: 17 g
- Saturated fat: 3 g
- Carbohydrates: 1 g
- Sugar: 0 g
- Fiber: 0 g
- Protein: 3 g
- Sodium: 161 mg
- Cholesterol: 4 mg
This website is written and produced for informational purposes only. I am not a certified nutritionist and the nutritional data on this site has not been evaluated or approved by a nutritionist or the Food and Drug Administration. Nutritional information is offered as a courtesy and should not be construed as a guarantee. The data is calculated through an online nutritional calculator, Edamam.com. Although I do my best to provide accurate nutritional information, these figures should be considered estimates only. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Furthermore, different online calculators provide different results depending on their own nutrition fact sources and algorithms. To obtain the most accurate nutritional information in a given recipe, you should calculate the nutritional information with the actual ingredients used in your recipe, using your preferred nutrition calculator.
Gluten-Free Adaptable Note
To the best of my knowledge, all of the ingredients used in this recipe are gluten-free or widely available in gluten-free versions. There is hidden gluten in many foods; if you're following a gluten-free diet or cooking for someone with gluten allergies, always read the labels of your ingredients to verify that they are gluten-free.
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SHRIMP PIZZA
Hi Jenn, My wife and I used to get a pre-made crust such as the brand Bob—. Spread it with this and then add cut up cooked shrimp, top with fresh black pepper, and mozzarella mixed with a little fresh grated parmesan. Took about 5 minutes to prep. Now she makes a fabulous crust, which we roll out thin, and roll a dough docker over it. (We’re St. Louis thin crust fans.)We then pre-bake until it starts to turn brown. We then pull it out and add the toppings, put back in the oven until the cheese is light brown around the edges and bubbly in the center. It’s absolutely fabulous!
Hi Jenn! I have a nut allergy and I am wondering if you can just leave them out or if I should substitute something like sunflower or pepitas? Thanks!
Hi Jill, I wouldn’t just leave the nuts out. I haven’t tried this with seeds like pepitas or sunflower so I can’t say for sure how it will turn out – I’m sorry I can’t be more helpful (but I’d love to hear how it is if you try it)!
I made it with a 1:1 sunflower seed swap and it’s DELISH!!! Just fyi 🙂
I made my pesto with no nuts. I heard you can use the walnuts but I didn’t have it either so I used Pecorino Romano cheese. I grated it and used it along with Parmesan cheese.
It was delicious.
Delicious! I’m glad I found this recipe to try for my first time making pesto. It was so good!
Hi Jenn I made this recipe today. Looks and smells amazing. The basil flavour isn’t very strong, is that supposed to be the case? I mainly taste the cheese and walnuts, the basil is very slight. Thanks!
Hi Sam, strange that it doesn’t taste much of basil – you should be tasting all the flavors.
Hello! If I want to use pine nuts, should I use the same quantity as the walnuts?
Yep – hope you enjoy!
Added a couple T of lemon juice and it’s perfect!
Very tasty
Turned out very well I just cut down on salt. Delicious
This is by far the best pesto recipe I have found. Walnut pesto is extremely nostalgic to me but I could not get the proportions right to reproduce my mother’s recipe. Of the many alternatives I have tried, this one is by far the best and most similar to the pesto of my past.
I’m half Italian and this is by far as good as my mama’s and grandpa’s pesto. I don’t have their recipes and was so excited when my husband gave it a thumbs up. The version I was making was good but yours brings back memories and is delicious. I freeze it in ice cube trays so we can have it available at all times.