This is a variation of the widely known "wacky cake", "crazy cake", "oil & vinegar cake", "war cake", etc., which was developed during the Great Depression when milk, butter, sugar and eggs were scarce or expensive. I like to use the base for this recipe when baking for those with egg or milk allergies. This cake is very moist and packed with lemon, lime and orange flavor. Because it's so moist, it could simply be served with a light glaze or without icing altogether. I like to frost it with my favorite vanilla buttercream topped with a generous sprinkling of flaked coconut for a tropically delicious dessert.