It is now above on this thread. You don't heat the milk when using an Easiyo system, just boiling water. There are videos on Youtube etc on how to do this, and the other methods of making it without an Easiyo.
Actually, each batch further away from the packet tastes better IMO.
If you want it thicker, add some powdered shimmed milk, about a dessert spoonful, but then need to mix it really well to dissolve it.