Tips to Upgrade Your Coffee for embedded video.
Recap: Put the chocolate square, whether it’s plain chocolate, dark chocolate, or a decadent filled chocolate square (like salted caramel, shown in video at the page linked above) in the bottom of your mug. Then fill your mug with hot coffee. Give the chocolate a minute to melt, then mix it into the coffee with a few strong stirs.
Or… Dunk a scoop of ice cream in there.