The cakes can be torted to make 4 layers with frosting in between each layer, as I've done in these photos. Shredded coconut and/or drizzled chocolate can be added to the middle layer, if desired. The cake can be made a day ahead and stored uncovered at cool room temperature or in the refrigerator; remove from refrigerator at least 30 minutes before serving. Leftovers should be covered and refrigerated.