Make coffee.There are multiple ways to make the coffee for this drink: Cold brew, strong brewed coffee that has been cooled down, instant coffee, or espresso from a machine. I like using cold brewed coffee for this drink. If you're using drip coffee, make sure to brew it double strength so it's nice and strong.
Stir together brown sugar and hot water.I use an electric kettle to boil water. This is how I make a quick simple syrup without cooking anything on the stovetop. Set aside to cool.
Pour brown sugar simple syrup into a cup and add ice.
Slowly add milk, then coffee.Make sure to pour the milk then the coffee onto the ice cubes to help keep the layers separated. Stir before drinking.