Banana Filling

This filling is best assembled immediately before serving. The egg white icing can be made up to 1 hour ahead and kept covered at room temperature, but bananas should be added just before serving to prevent browning and moisture release.

This cake filling does not store well due to the raw egg whites and fresh bananas. The assembled cake should be served within 2-3 hours of assembly and kept at cool room temperature. Refrigeration will cause the bananas to darken and release moisture, making the layers soggy. Any leftovers should be discarded due to food safety concerns with uncooked egg whites.