Fill a glass halfway with ice cubes. Pour in the tonic water and cooled brewed coffee. Stir in brown sugar (or sweetener of choice) and a pinch of cinnamon. Top with freshly grated orange zest or orange peel twist.
Ingredients:
4 oz. freshly brewed DIA coffee (cooled)
4 oz. tonic water
1 tsp. brown sugar or sweetener of choice (optional)