This icing can be used with all sorts of cakes.
Above you can see it on the One Egg Banana Cake.
This recipe has been published a great deal in vintage Australian newspapers. I found it in the Queanbeyan Age and Queanbeyan Observer, Friday the 17th November 1916
1/2 lb or 240gm of icing sugar or powdered sugar.
A couple of tablespoons of pulp-free orange juice.
Sift the sugar.
Warm the orange juice in a saucepan and add the icing sugar.
Heat gently until melted and pour over your cooled cake.