Method

1. Heat a non-stick frying pan over medium heat and lightly toast the pine nuts for 2–3 minutes, stirring continuously until they are lightly golden and fragrant. Remove from the heat and allow them to cool.

2. Place the garlic and a pinch of salt in a mortar and crush them with the pestle until a smooth paste forms. Gradually add the basil leaves, working them patiently until they begin to break down.

3. Pour in a small amount of the olive oil to help the mixture combine, then add the toasted pine nuts. Continue grinding until a smooth, aromatic paste forms.

4. Add the grated Parmesan cheese or, if preferred, Pecorino Romano, and continue working the mixture while slowly drizzling in the remaining olive oil until the pesto reaches a rich, creamy consistency.

5. Taste and adjust the seasoning with salt and freshly ground black pepper according to your preference.

6. Storage

7. Store the pesto in a sterilized glass jar in the refrigerator for up to 5 days. Cover the surface with a thin layer of extra virgin olive oil to prevent oxidation and help preserve its vibrant green color.

8. Lightly toasting the pine nuts enhances the pesto’s aroma and nutty flavor.

9. Use only the basil leaves, avoiding the thick stems, which can add bitterness.

10. For authentic Pesto a la Genovese, preparing it in a mortar and pestle produces a richer aroma and a more traditional texture. A blender or food processor is a quicker and more convenient alternative.

11. If using a blender or food processor, pulse the ingredients rather than blending continuously to prevent overheating, which can dull the basil’s vibrant color and fresh flavor.

12. Basil pesto is perfect with pasta, gnocchi, salads, grilled vegetables, chicken, fish, sandwiches, bruschetta, and pizza. It can also be used as a flavorful base for a variety of sauces.