1. Several hours before you are going to make iced coffees, prepare 8 cups of fresh brewed coffee and place in refrigerator to chill.
2. In large pitcher combine 1 cup sugar and hot water and stir well.
3. Once combined, pour chilled coffee into pitcher.
4. Add Irish whiskey and stir.
5. Add chocolate syrup and stir to blend.
6. Fill serving glasses with ice and pour coffee and whiskey mixture over ice.
7. Top with whipped cream and serve.