Authentic Basil Pesto: Bright Lemon and Parmesan Sauce

Drying the basil before processing keeps extra water from thinning this Italian basil pesto, while fresh lemon juice helps the green sauce stay bright. A food processor turns basil, pine nuts, Parmesan, garlic, olive oil, lemon, salt, and pepper into a textured, savory sauce.

Italian large-leaf, sweet, or Genovese basil gives the traditional profile, and the leaves should be rinsed, drained, and dried before they meet the processor. Pine nuts form the customary base, Parmesan adds savory depth, and two large garlic cloves supply punch. Extra-virgin olive oil brings everything into a spoonable sauce, while freshly squeezed lemon juice adds freshness without needing much extra salt and a clean, citrusy edge.

Process until the mixture looks cohesive and green yet still has a little texture, as the recipe photographs show. The olive oil should bind the chopped leaves, cheese, nuts, and garlic rather than leave dry fragments around the bowl. The frequent mistake is starting with wet basil, which creates a watered-down sauce. Another is running a high-powered blender too long, which removes the intended texture instead of creating a rough, spoonable paste.

Serve it with pasta, gnocchi, chicken, sandwiches, pizza, salads, grilled vegetables, or meat, using the thickness that suits the dish. For leftovers, use an airtight container and drizzle olive oil over the surface to limit air exposure. Freeze pesto in ice-cube trays, then transfer frozen portions to a freezer-safe bag or container.