In a small bowl or cup, combine 2 tablespoons of coffee granules with 1/2 cup of warm water. Use a spoon to stir until all the granules are fully dissolved. Set aside to cool for a few minutes.
In a blender, add 1 cup of milk and 1/4 cup of sugar. Blend on high speed until the sugar is completely dissolved and the mixture becomes frothy.
Place 2 cups of ice in a tall glass. Pour in the chilled water, followed by the prepared coffee mixture and milk mixture.
Using a long spoon or straw, carefully mix all the ingredients together until well combined. For an added touch of indulgence, top it off with whipped cream or a sprinkle of cinnamon.
Serve immediately and savor each sip of your perfectly brewed First Watch Iced Coffee.