Creamy Lemon Cashew Pesto Recipe

Pesto is one of those sauces almost everyone loves. The bright, herbaceous aroma of fresh basil is a favorite in my kitchen, and its flavor works beautifully across many cuisines. To give a familiar classic a twist, I developed this Lemon Cashew Pesto. It’s lively, creamy, and versatile—perfect for pasta, as a spread, or even to accent a sweet-salty dessert.

What I appreciate most about this pesto is its delicate balance: the nuttiness from roasted cashews, the brightness from lemon zest, and the familiar savory depth from freshly grated hard cheese. Chop it coarsely and float a spoonful into soups, stir it into warm grains, or use it as a surprising accent in a fruit and cheese tart for a sweet-savory finish.

Lemon Cashew Pesto

For this version I swapped traditional pine nuts for roasted cashews I had leftover from holiday baking. Cashews lend a rich, slightly sweet, and creamy texture that blends smoothly while still offering a pleasant nutty bite. The lemon zest and a touch of red pepper flakes keep the sauce lively and bright without overpowering the basil.

This recipe is straightforward and quick to make. I tossed it with whole wheat pasta and sautéed chicken for a simple weeknight dinner. The lemon zest lifted the flavors, while the optional red pepper flakes provided a subtle background warmth. If you prefer no heat, simply leave them out—this pesto is flexible.

How to make it

Place the roasted cashews, garlic cloves, lemon zest (from half a lemon), a pinch of kosher or sea salt, a pinch of red pepper flakes, and the freshly grated Parmesan-Reggiano or Romano into a food processor. Pulse until the mixture breaks down and forms a coarse paste—this usually takes about a minute of intermittent pulsing. At this stage the aroma is fantastic and you can taste to adjust salt or lemon if needed.

With the processor running, add the basil leaves, then slowly pour in the extra virgin olive oil in a steady stream until the pesto becomes smooth and fully emulsified. Scrape down the sides as needed to ensure even blending. The finished yield is almost three cups of pesto—enough to dress several servings of pasta or to keep in the fridge for quick meals.

To serve, I sautéed boneless chicken pieces, tossed them with cooked whole wheat pasta, and stirred in several spoonfuls of the warm pesto. Finish with a light sprinkling of grated Parmesan and a squeeze of fresh lemon juice for added brightness. It makes a satisfying, balanced dinner that’s both simple and flavorful.

The cashews give this pesto a mellow, nutty character that pairs beautifully with basil. Use it as a condiment, a pasta sauce, a sandwich spread, or a dip for vegetables. Leftovers keep well refrigerated for several days and can be gently warmed or thinned with a little extra oil or lemon juice when ready to use. I hope you enjoy this Lemon Cashew Pesto as much as I do—it’s one of those sauces that elevates simple ingredients into something memorable.