What Is Pesto? How To Use It, Simple Tips, and Easy Recipes

There’s so much more to pesto than you might think! While pasta dishes are the most common way to use pesto, it is far more versatile than that. This guide covers what it is, practical tips for cooking with it, and a long list of ways to put it to work—from hot dishes like pizza, baked salmon, and grilled cheese to cold uses like sandwiches, dips, and crostini.

In this article:

What Is Pesto and What Goes Into It?

Ingredients for making pesto displayed on a wooden surface, including basil, olive oil, pine nuts, and cheese

Pesto is an Italian sauce from Genova, in the Liguria region of northwestern Italy. The name comes from the Genovese word “pestâ,” meaning “to pound” or “to crush,” which is exactly how it was traditionally made.

Classic and traditional pesto consists of seven key ingredients:

  1. Genovese basil
  2. Pine nuts
  3. Garlic
  4. Parmigiano-Reggiano
  5. Pecorino
  6. Extra-virgin olive oil
  7. Salt

You can make a similar recipe at home with the same seven ingredients. Just put them all into a food processor and blend until smooth. You can even swap the pine nuts for walnuts, almonds, cashews, or pistachios and swap the basil for arugula, kale, or parsley.

Or you can take advantage of ready-to-use Spice World Pesto! This jarred version blends pine nuts and cashews with basil, sunflower oil, salt, extra-virgin olive oil, Parmigiano-Reggiano, and garlic. It has no added preservatives, is non-GMO, kosher, and a product of Italy.

Pesto vs. Basil: How They Compare

Fresh basil leaves commonly used to enhance flavor in various delicious dishes

Basil is the herb traditionally used to make pesto, which is the finished sauce. To create the classic topping, the basil is blended with nuts, cheese, garlic, olive oil, and salt.

 BasilPesto
FormSingle fresh (or dried) herbFinished blended sauce
Ingredients16 or more
Primary useFlavoring agent added to dishesReady-to-spoon sauce
FlavorSweet, peppery, anise-likeHerbaceous, nutty, savory, garlicky
StorageFresh: about 1 week refrigeratedHomemade: 3–5 days refrigerated; opened store-bought: 1–2 weeks

What’s in a Serving of Pesto?

Pesto is a calorie-dense ingredient, and most of those calories come from fat, since olive oil, nuts, and cheese are all fat-rich. According to USDA FoodData Central, ready-to-serve pesto averages roughly 418 calories per 100 grams.

Here’s the breakdown for 1 tablespoon of Spice World Pesto:

Spice World Pesto (1 Tbsp)Amount
Calories90
Total fat9 grams
Sodium140 milligrams
Total carbohydrate1 gram
Protein0 grams

Is Pesto Vegan, Vegetarian, or Gluten-Free?

Person adding fresh herbs to a deliciously prepared flatbread, showcasing a focus on flavor and presentation

Is pesto vegan? Traditionally, it is not vegan because it contains Parmigiano-Reggiano and often pecorino, both of which are dairy cheeses.

Is pesto vegetarian? Mostly, but traditional Parmigiano-Reggiano and pecorino are made with animal rennet under EU Protected Designation of Origin (PDO) rules, so some vegetarians choose to avoid pesto.

Is pesto gluten-free? Yes, traditional pesto is gluten-free because none of the seven core ingredients contain wheat. Commercial versions can vary though. Some include additives or carry cross-contamination risk in production, so always check the label if gluten is a concern.

Spice World Pesto includes raw cashew nuts, pine nuts, and milk protein, so keep that in mind before consuming if you have sensitive allergies.

What Makes Pesto So Versatile?

Bowl of delicious pesto rice with cherry tomatoes and fresh basil, served with lemon wedges on the side

Pesto’s bright, herbaceous flavor works beautifully as a creamy, savory sauce on a variety of dishes beyond pasta nights—which is why it earns a spot in the fridge.

Tips for Cooking With Pesto

Here are a few quick tips to keep pesto tasting fresh and delicious:

  • High, direct heat is pesto’s enemy. Add it at the end of cooking, off heat or at a low simmer, whenever possible.
  • When tossing it with hot pasta, reserve some of the starchy water drained from the noodles. Then add the water to the pasta as needed so noodles don’t break as you toss them with the sauce.
  • Pesto pairs naturally with tomatoes, mozzarella, chicken, shrimp, salmon, eggs, potatoes, roasted vegetables, and avocados.

Simple Recipes To Try Using Pesto

A delicious sandwich topped with chicken, tomatoes, and balsamic glaze, served with fresh ingredients in the background

Pesto Caprese Chicken Sandwich

For this sandwich, grilled chicken is layered with fresh mozzarella, ripe tomatoes, Spice World Pesto, and Spice World Minced Garlic on toasted ciabatta and then drizzled with a balsamic glaze. The recipe serves two and is ready in 30 minutes.

Plate of pesto pasta garnished with fresh basil

Fresh Pesto Pasta

Pasta tossed with Spice World Pesto, Spice World Easy Onion, olive oil, and Parmesan makes for a quick recipe that comes together in about 20 minutes.

Delicious bite-sized appetizers topped with fresh tomatoes and herbs on a wooden serving board. Perfect for gatherings

Pesto Avocado Crostini

The topping for this creamy, herby, unique appetizer—made with Spice World Pesto, avocado, cream cheese, and lemon—is spooned onto crostini and finished with cherry tomatoes.

More Ways To Use Pesto

Delicious sandwich filled with chicken, pesto, sun-dried tomatoes, and arugula, served with a lemon wedge

Pesto is a versatile ingredient that holds its own on pasta and earns a spot in the fridge for many other yummy uses. Try it on a sandwich, swirl it into eggs, or spread it on homemade pizza dough before adding the cheese. Looking for more delicious pesto discoveries? Find ideas on our website at Spice World Inc.

Frequently Asked Questions

What does pesto taste like?

Pesto tastes bright, herbaceous, and savory. Fresh basil delivers an herbal, slightly peppery base. Pine nuts add buttery richness. Parmesan brings salty, umami depth. Garlic adds a sharp kick, and extra-virgin olive oil ties it together with a fruity finish.

Homemade pesto keeps three to five days in the fridge when sealed tightly with a thin layer of olive oil on top to slow oxidation. Spice World Pesto, on the other hand, lasts much longer. Once opened it can last up to 3 months if sealed tight and refrigerated! Signs that pesto has gone bad include a sour or rancid smell, visible mold in white, green, or black spots, or a slimy texture.

Yes, pesto freezes well for longer-term storage. The most popular method is to spoon it into ice-cube trays, freeze until solid, then transfer the cubes to a freezer bag for portion-friendly use. Frozen pesto keeps for up to three months, and a thin layer of olive oil on top before freezing helps protect the color. For everyday use, refrigeration is the simpler choice.