The recipe yields 1 cup of pesto and will keep in the fridge for up to a week.
This recipe serves 4 people however if you are cooking for less people remember 100g (3.5oz) dried pasta per person with 1/4 cup pesto and 1/4 cup pasta cooking water.
Pasta should be cooked 'al dante' which means the outside is tender and the inside of the pasta is slightly firm.