This chilli sauce is big — big flavour, big kick, big reward. The name, however, derives from the fact that the recipe was given to me by my brother-in-law, Jim, Jimbo to me, but often known teasingly as Jumbo due to his compact size. I cannot have enough of this. I love it with prawns, with cold chicken, with chips, with everything. For US cup measures, use the toggle at the top of the ingredients list.