Angie is going to show us how to make a banana cake. Start by creaming 2/3 cup of butter. To the butter that's nice and creamy, cream in 1-2/3 cup sugar until the sugar dissolves and mixture is fluffy. Scrape the sides of the bowl to make sure you get everything mixed. Now, you'll beat in three eggs one at a time. Now add 1-1/4 cups mashed banana. This is a good time to use those ripe bananas. In a separate bowl for each 2-1/2 cups sifted cake flour, add 1-1/4 teaspoons baking soda, 1-1/4 teaspoons baking powder and a teaspoon of salt. Use a whisk to mix the dry ingredients before putting them into the wet ingredients. Mix in 1/3 of the flour mixture and pour a half of the 2/3 cup of buttermilk into the wet ingredients. Mix with mixer as before. Add another third of the dry ingredients and the rest of the buttermilk. Stir that and add remaining flour. Mix that for a couple of minutes with mixer. When the mixture is mixed well, add 2/3 cup of chopped pecans or walnuts if you want. Pour batter into a greased 9 x 13" pan. Bake the cake at 350 degrees for 45 to 50 minutes. After it's baked leave in the pan for about 10 minutes turn it over on rack until it's completely cooled.
For the frosting, use 1/3 cup of butter and cream it in a bowl with an electric mixer. Add 3 cups of icing sugar and 3 tablespoons of milk or light cream and 1-1/2 teaspoons of vanilla extract. Beat the mixture up until it's smooth and spreadable. Add a tiny bit more milk if the frosting is too stiff. Spread the frosting and enjoy.