In a small sauce pan heat the milk over low heat. Add in the coconut white chocolate slowly, whisking constantly until chocolate is completely dissolved into the milk.
Add in a pinch of salt and stir well. Take the milk off the heat and set aside.
Add matcha powder to a bowl. Pour boiling water over the matcha and mix in a W shape using a bamboo whisk until you have a lovely froth with bubbles.
Fill your cups with ice. Pour over your matcha, then add cooled milk and stir to mix.
Notes
If you prefer to make a hot beverage skip the ice, pour hot white chocolate milk into a mug and pour over matcha.