Incredibly simple to make, incredibly fast to prepare, and incredibly tasty to consume.
You will need:
Pour the milk into a blender, and sprinkle the Ovaltine on top. Chuck in half a banana, and (if you so desire), as many ice cubes as cups of milk. Blend for 10 to 15 seconds.
The ice will make it a cooler drink, and will leave cool little ice bits. Leaving the ice out wil provide a smoother drink. Either way is nummy.
Pour into a glass, and serve.