This is a weird-sounding recipe, but it tastes great and is very easy to make. I found it on the web but it is originally from an undated Australian book called 'Commonsense Cookery Book' which was written by the NSW Public School Cookery Teachers Association. I would recommend adding another couple of passionfruit (unless you have very large ones) and topping them with the pulp of an extra half or whole passionfruit.
Keep in mind that the tablespoons called for in the recipe are the standard Australian tablespoon of 20ml, i.e. 1 tsp bigger than the rest of the world's standard tablespoon.