1. Put your scoop of ice cream in a large coffee cup.
2. Mugs would work well too.
3. Top it off with the espresso or coffee to just about fill the coffee cup. (Instead of making individual servings of espresso, I just brewed espresso ground coffee in my regular coffee maker. Worked great and took a lot less time. For this kind of a drink you don't need to fuss over an espresso maker if you don't have the time of or the inclination.)
4. Put in your shot of whiskey and top with whipped cream.
5. No need to stir.
6. You can serve it with a spoon if you'd like.
7. The ice cream will melt right into the coffee so you're good to go either way.