Pour the soymilk in the blender. Add cocoa powder. Add peeled ripe banana. Add the ice cubes - 5 standard ice cube tray square ice cubes or the equivalent in little ice cubes. Start with 12 if you only have the smaller cubes and keep adding until you get a smoothie consistency so you don`t overdue it. Add soy protein powder if you wish. Just blend REALLY well to incorporate.