Dad was the gardener in our family.  He grew tomatoes, beans, silverbeet and rhubarb in his vegie plot.  There was a passionfruit vine on the back fence and, of course, a lemon tree in the corner.  I think every Melbourne family had and probably still has a lemon tree in their backyard.  Easy to grow and if the position is right lemons in abundance.  As a result Mum made the most of it and used lemons where ever she could.  This self saucing pudding was one of her yummy ways of using some of the crop.