Banana walnut cake vote now PreviousNext OtherVery Easy1 h 3 m Send this recipe to a friend Print this page Ask a question to the author Post your photo of this recipe Ingredients 7 170 g plain flour 150 g unsalted butter 1 teaspoon baking powder 1 teaspoon baking soda 4 eggs - yolks and whites separated 80 g sugar - divided into 2 portions 3 medium bananas, mashed 2 teaspoons lemon juice to prevent your cake from turning black the next day. 60ml milk 1/2 teaspoon cream of tartar 80 g walnuts, slightly chopped and toasted View the directions