Jamie Oliver's Pesto Sauce

1/2 clove of garlic chopped
Sea salt and fresh ground pepper
3 handfuls of fresh basil
Handful of pine nuts
Handful of fresh grated Parmesan cheese
Extra virgin olive oil

Pound garlic with a pinch of salt and the basil leaves in a pestle and mortar, or pulse in a food processor. Add pine nuts and pound again. Put into a bowl and add half of parmesan. Stir in gently and add olive oil. Season to taste, then add some of the remaining cheese and more olive oil. Repeat until desired consistency. If you want you may add a squeeze of fresh lemon to add a little "twang" Try it with or without and see which you prefer.