Sally lunn. Ingredients: 1 cup cold mashed potato, 3/4 cup sugar, 2 cup flour, 2 tsp BP, 1/2 tsp salt, 1 cup milk, 1 cup sultanas. Beat potato and sugar til creamy, add rest of ingredients. Bake 180 c (or 350 f) for 30 mins on a well greased tray. Ice while warm and sprinkle with coconut. Enjoy.