In this video I demonstrate how quickly you can go from one Basil plant to an almost infinite supply. I go from one plant to 8 in 30 days and then to 18 in 60 days. In one year using this method you could have thousands of Basil plants all from the original mother plant. I use time-lapse photography to document the growth at every stage.
Basil propagates very easily from cuttings and within a month those cuttings are established plants which can then be used to take more cuttings. At each stage of making new plants there are always plenty of leaves which can be used for cooking. Once you get enough plants to provide for your needs you can stop taking cuttings and just harvest the stems as you need them.