Lemon Pesto with Almonds

A bright, nutty Ligurian-inspired pesto that swaps some of the traditional pine nuts for almonds and lets lemon zest and juice take center stage — creamy, fragrant, and intensely citrusy, perfect on pasta, grilled fish, or roasted vegetables.

Amount	Ingredient
1 large (or 2 small)	lemon
80 g (¾ cup)	Parmigiano-Reggiano, finely grated
100 ml (scant ½ cup)	extra-virgin olive oil
40 g (⅓ cup)	pine nuts
30 g (¼ cup)	whole almonds, blanched or raw
6 leaves	fresh basil
1 clove	garlic
to taste	kosher salt

This lemon pesto is a sunnier, more acidic cousin of the classic Genovese. Where traditional pesto relies on basil as its dominant flavor, here the lemon — both zest and juice — takes the lead, creating a sauce that is simultaneously rich from the nuts and cheese and bright from the citrus. The combination of pine nuts and almonds is deliberate: the pine nuts bring buttery sweetness, while the almonds add a subtle, earthy backbone and a slightly coarser texture. Basil plays a supporting role, lending just enough herbal freshness to keep the pesto from tasting one-dimensional. This is a pesto that works beautifully with delicate pastas (linguine, angel hair), as a marinade for chicken or fish, or simply spooned over grilled zucchini or asparagus. The key is to pulse, not purée — a coarse, textured paste is the goal.

Ingredient notes: Use a large, unwaxed organic lemon if possible — you will be using the zest, and waxed supermarket lemons can leave a chemical residue. If only small lemons are available, use two. The Parmigiano-Reggiano should be finely grated on a Microplane or the smallest holes of a box grater; pre-grated cheese contains anti-caking agents that prevent it from emulsifying properly. Blanched almonds (skins removed) produce a creamier, milder pesto; raw almonds with skins will work but yield a slightly more bitter, darker result. Toast the nuts lightly for the deepest flavor, though untoasted nuts work well for a more delicate, raw-nut character.

• Food processor
• Small skillet (for toasting nuts)
• Microplane or fine grater (for lemon zest)
• Chef's knife and cutting board
• Rubber spatula
• Measuring cups and spoons
• Airtight container or serving bowl

1. Prepare the lemon (2 min). Wash and dry the lemon thoroughly. Using a Microplane or fine grater, grate all the zest — you should have about 1 tablespoon. Be careful to avoid the bitter white pith. Halve the lemon and squeeze; reserve about 2 tablespoons of juice.

1. Toast the nuts (2 min). In a small, dry skillet over medium heat, combine the pine nuts and almonds. Toast, shaking the pan frequently, until fragrant and just beginning to take on color — the pine nuts will turn golden on one side, and the almonds will smell deeply nutty. This takes about 2 minutes. Immediately transfer to a plate to cool completely. Toasting is essential: raw nuts create a flat, one-dimensional pesto.

1. Build the base (1 min). In a food processor, combine the cooled toasted nuts, peeled garlic clove, basil leaves, and lemon zest. Pulse 5 to 7 times, until the nuts are coarsely chopped and the garlic and basil are broken down. Scrape down the sides of the bowl with a rubber spatula.

1. Add the cheese and liquids (1 min). Add the grated Parmigiano-Reggiano, lemon juice, and about half the olive oil. Pulse 3 to 4 times to combine. With the food processor running, drizzle in the remaining olive oil in a steady stream until the pesto comes together into a thick, creamy paste. Stop the machine and scrape down the sides.

1. Adjust the consistency (1 min). The pesto should be thick enough to coat a spoon but loose enough to toss with pasta. If it is too thick, add warm water 1 tablespoon at a time and pulse to incorporate. If it is too thin, add more Parmigiano or a small handful of almonds, pulsed in.

1. Season and serve (1 min). Season with salt to taste. Keep in mind that the Parmigiano is already salty — start with a small pinch and adjust upward. Toss immediately with hot pasta (reserve ½ cup of pasta water to loosen the sauce), use as a marinade, or transfer to a jar and top with a thin layer of olive oil to prevent oxidation.

• Toast the nuts for depth. This is non-negotiable for the best flavor. Raw nuts produce a flat, starchy pesto; toasted nuts release their oils and transform the sauce into something fragrant and complex.
• Zest first, then juice. Grate the zest before cutting and juicing the lemon — a whole, uncut lemon is much easier to zest than a halved one.
• Pulse, don't purée. A smooth, homogenous paste is not the goal. The pesto should have visible flecks of nuts and herbs — a coarse texture that clings to pasta and provides contrast in every bite.
• Reserve pasta water. If using this pesto with pasta, always reserve a cup of the starchy cooking water before draining. A splash (or two) loosens the pesto into a silky sauce that coats every strand.
• Let it rest. Like most pestos, this one improves after a 15-minute rest at room temperature. The flavors meld, the nuts absorb the oil, and the lemon mellows slightly.
• Don't skip the basil. Six leaves may seem like a modest amount, but they provide a crucial herbal backdrop that prevents the pesto from tasting like straight lemon and oil.

Mistake	Why It Hurts	The Fix
Using pre-grated Parmigiano	Anti-caking agents prevent proper emulsification, yielding a gritty, greasy sauce	Grate a block of Parmigiano-Reggiano fresh on a Microplane
Over-toasting the nuts	Burnt nuts add a bitter, acrid flavor that cannot be masked — pine nuts burn especially fast	Watch the pan constantly; remove the nuts the moment they are fragrant and lightly colored
Including white pith with the zest	Pith is intensely bitter and will ruin the bright, clean flavor of the pesto	Use a Microplane or sharp grater that takes only the yellow surface, not the white layer underneath
Adding all the oil at once	The pesto becomes greasy and separates, with oil pooling on top	Drizzle the oil in slowly while the processor runs, allowing the nuts and cheese to absorb it evenly
Over-processing into a smooth paste	The pesto loses its rustic texture and becomes pasty and heavy	Pulse in short bursts and check the texture frequently — visible nut and herb flecks are the goal
Skipping the salt adjustment	Without enough salt, the pesto tastes flat and acidic rather than bright and balanced	Taste on a piece of bread or pasta before serving; adjust salt upward until the flavors pop

• Spicy Lemon Pesto: Add ½ teaspoon red pepper flakes or one small dried chili (crumbled) with the nuts in step 3. The heat cuts beautifully through the richness of the nuts and cheese.
• Herb Lemon Pesto: Replace the basil with an equal mix of fresh mint and parsley for a greener, more cooling pesto that is excellent with lamb or grilled fish.
• Vegan Lemon Pesto: Omit the Parmigiano-Reggiano and substitute 2 tablespoons nutritional yeast plus an extra 2 tablespoons of almonds. Add an extra tablespoon of lemon juice and a pinch of salt to compensate for the lost umami.
• Lemon-Ricotta Pesto: After making the pesto, fold in 100 g (½ cup) of fresh whole-milk ricotta. This creates a creamier, milder sauce that is spectacular with stuffed pasta shells or as a dip for crudité.
• Arugula Lemon Pesto: Swap the basil for 40 g (2 cups) of fresh arugula. The peppery bite of arugula pairs beautifully with the lemon and almonds — ideal with grilled chicken or steak.

Recipe from The Italian Kitchen by Vita Milanese — Volume 2 · Sunday Sauce. Discover all volumes on the ebook page.