For the spaghetti with pesto, cook the pasta until al dente.
Blend the basil and parsley leaves, peeled garlic cloves, pine nuts, oil and milk in a hand blender. Stir in about 3/4 of the cheese. Serve spaghetti with sauce and sprinkle with remaining cheese. Garnish spaghetti with pesto as desired with basil and pine nuts and bring to table.