The secret of making a real genovese pesto (except for using the freshest ingredients) is to grind the ingredients with a mortar and pestle to get a real authentic taste. Most people use electric mixers nowadays which is still fine however it is important to not over-mix the ingredients as it will then over-heat the sauce . This is one of the most simple recipes and it doesn't require a lot of ingredients, I used this recipe and have translated it for you:
Recipe:
2 cloves of garlic
100ml extra virgin olive oil
50g of basil leaves
70g freshly grated parmesan cheese
30g of pecorino cheese
15g of pine nuts
a pinch of salt ( I use fleur de sel)
*Start by grinding the garlic cloves with a pinch of salt in the mortar until a creamy like texture is formed
*Add a few basil leaves at a time to the garlic together with a pinch of salt and grind (or as they say in italy pestare) until the bright green essence of the basil has come out
*Add the pine nuts and crush until creamy, at this point you may add the 2 cheeses altering them with the olive oil and grind till the texture is consistent
Et VoilĂ ! Buon appetito!