Preheat your oven to 350F and grease (2) 8-inch pan and line with parchment paper at the bottom. Peel and mash ripe bananas as smooth as you can and set aside. In a large mixing bowl, sift dry ingredients together all-purpose flour, cake flour, baking powder, baking soda and salt, then set aside.
In another mixing bowl combine brown sugar, oil, eggs and vanilla extract together and mix well until sugar are fully dissolved. Add mashed bananas into your egg mixture and then, add in the sifted dry ingredients and mix until well blended and no lumps.
Divide the banana batter into (2) 8-inch pans and bang the pan gently on a flat surface to get rid some air bubbles. Bake them for about 28-30 minutes or until inserted toothpick in the center comes out clean. Fire off, transfer to a cooling rack and let it cool completely before adding any frosting.
Meanwhile, let’s prepare our frosting and Crumb toppings. In a clean, well chilled bowl, combine whipping cream powder and cold water and let it soak for a couple minutes. Add the vanilla extract and whip the cream until light and aerated. Your whipped cream is ready to use. You can use a piping bag with your favorite icing tip to frost the sides of your cake.
For the crumbs: In a food processor combine nuts of your choice and sweetened banana chips and pulse until crumbs but not so fine. At this point you can also add a tablespoon of honey if your chips are unsweetened but that’s optional. Transfer in a small bowl and set aside.
First, we need a cake board at least 2 inches larger than your cake. Using a metal spatula, spread a small amount of frosting into the center of your cake board and place your first layer in the center. Add about 1/3 part of icing on top and cover with your last layer. Frost the top and sides of the cake and chill for about 20 minutes.
Sprinkle with nuts and chips on the sides, top and decorate with chocolate of your choise. And since there’s a little whipped cream leftover, I decided to decorate the sides and it turned out nice (hehe..)
And there you go…it’s time to eat and enjoy!