When I make hot chocolate, I used to warm up milk then add the cocoa mix. However the water kettle is much faster. The problem there is that then your cocoa is so hot, you can’t drink for 15 minutes. Tonight I found the magical solution.
Boil Kettle. Pour water over cocoa until it a little over half way full. Then fill the rest of the way with cold milk! Now it has the creamy goodness of the milk, the speed of the kettle, and is at a drinkable temperature as soon as your done! Awesome!