Mix together butter, sugar, banana, eggs, vanilla and ... minutes. Frost with White Creamy Icing (below). In saucepan, mix flour, ... until fluffy. Frost cake.
Cream butter and sugar in bowl until light and ... well. Fold egg whites gently into batter. Spoon into ... remaining layer. Spread creamy White Icing over top and sides of ... enough for 1 layer.