Add the ice into a 16 oz cup or glass. Then mix the white chocolate powder or white chocolate sauce with 1 shot of espresso. Note: if you like your coffee stronger, you can definitely do a double shot instead.
Give it a good thorough mix ensure that the sugar granules have dissolved.
Then pour the sweet espresso over the ice.
Lastly, pour the milk over the ice as well. Give it a quick stir and add whipped cream (optional).