4 Make pesto
Meanwhile, rinse and dry the spinach and basil. Peel the garlic cloves. Grate the Parmesan. Add the spinach, basil (reserve a leaf or two for garnish), garlic, Parmesan, pine nuts (reserve a few kernels for garnish), salt, pepper, and olive oil to a food processor. Blitz until smooth. Alternatively, use a bowl and a hand-held blender.