Potato and Bean Salad

I know the warm weather seems to have disappeared from Melbourne, but I thought I would post this for my readers on the other side of the world, who are coming into spring.  And maybe we’ll have another burst of Autumn sunshine yet!  This is a good salad for taking on picnics. Both the salad and the mayonnaise recipe are based on ones in the Failsafe Cookbook (Potato Salad and Mighty Mayo).  I have tried several times to make egg mayonnaise and always end up with an oily mess.  The Mighty Mayo is a cheats method that tastes just as good, although I found the original recipe too sweet and have halved the sugar.