01 -
Preheat oven to 350°F (175°C).
02 -
Line three 6-inch or two 8-inch pans with parchment paper and spray sides with non-stick spray.
03 -
Sift flour, cinnamon, baking soda, baking powder, and salt onto parchment paper.
04 -
In a stand mixer, blend eggs, oil, sugar, and vanilla until smooth. Add mashed bananas and mix well.
05 -
Gradually add dry ingredients to wet ingredients, stirring until combined. Fold in chopped pecans to taste.
06 -
Divide batter among prepared pans and bake for 40-45 minutes, or until a toothpick inserted into the center comes out clean.
07 -
Cool cakes in their pans for 5 minutes, then transfer to cooling racks to cool completely.
08 -
To make caramel sauce, heat sugar and water over medium heat until golden. Whisk in coconut milk and butter until smooth and combined.
09 -
For buttercream, heat egg whites and sugar over boiling water, whisking constantly until the mixture reaches 160°F. Remove from heat and whip to stiff peaks. Gradually beat in softened butter until fluffy. Add vanilla extract and caramel sauce, mixing until smooth.
10 -
Trim the tops of the cakes to level them. Stack the cake layers with a layer of buttercream and caramel sauce between each.
11 -
Chill the cake, then drizzle additional caramel sauce over the top.