Additional mango slices, cookies or white chocolate, for garnish
Preheat the oven to 350F/177C and line two or three, 8-inch cake rounds with parchment paper, leaving the sides ungreased. Place the eggs, sugar and vanilla into a stand mixer bowl and whisk on high speed for 8 to 10 minutes, until eggs are very fluffy and almost white in color. In a separate bowl, combine the flour and baking powder. Sift the dry ingredients into the eggs, in small increments or thirds, folding gently but thoroughly after each addition. Keep the eggs as light as possible! Watch my video recipe to see how it's done.
Divide the sponge cake batter evenly between the pans. Bake in preheated oven for 22 to 25 minutes, until the tops of the cake layer are a rich, golden color and spring back when tapped lightly. Remove the cakes from the oven and run a knife along the edge of the pan to release the cakes. Allow them to cool in the pans for about 15 to 20 minutes, then invert onto a wire rack to cool completely. Once completely cooled, cut the layers in half, if prepared in two pans. If using three pans, the layers can be kept whole or split in half.
Next, prepare the mango puree. Peel and chop three large mangos and place them into a food processor or blender. Pulse the fruit until a smooth puree forms. If desired, add a squeeze of lemon juice to the puree to help preserve the color. Set aside 3/4 cup of the puree for the whipped cream frosting.
For the mango frosting: place the softened cream cheese into a medium mixing bowl and whisk for 1 minute until creamy and smooth. Melt the chocolate chips in the microwave or on the stove top using a double boiler. Add the chocolate to the cheese and mix again for 1 minute. Add in the mango puree and mix again for 1 to 2 minutes, until the mixture is creamy and smooth.
Into a separate mixing bowl, pour in the chilled heavy cream and add the confectioner's sugar. Whisk the cream first on low speed for about 1 minute, then turn the speed upt to high and whisk for 3 to 4 minutes, until stiff peaks form. Add the cream cheese and mango mixture and mix again on medium-high speed for 30 seconds, or just until everything is combined. DO NOT OVERMIX at this step, otherwise the frosting will separate. If desired, add a few drops of food coloring.
To assemble the cake: spread a few tablespoons of the prepared mango puree onto each cake layer, then top with a generous amount of mango frosting and top with the next layer. Repeat the same process for each layer, then frost the top and sides with more frosting. I also garnished the cake with dollops of cream, using Ateco decorating tip #829. Add sliced mango pieces, white chocolate or cookies as garnish, if desired. Watch my video to see how I put it together. Keep the cake refrigerated until ready to enjoy!