In a coffee cup; heat water and coffee in the microwave until hot. (Or heat the water and coffee ontop the stove in a small saucepan.) Add the sugar, and stir.
Now add the chocolate covered cherry; stir well to dissolve. After the chocolate has dissolved, remove the cherry from the cup.
Top the coffee with desired amount of Reddi Wip, or Cool Whip. Place the cherry ontop the whipped topping, and serve.
*Note: If using ground coffee instead of instant, use 2 teaspoons per each 2/3's cup of water in your coffee maker. Also, I have found that not all of the chocolate from the chocolate covered cherry, dissolves completely in the hot coffee. You may still see bits of chocolate floating in your cup.