This dish only takes 10 minutes to prepare and yields 4 servings, so it's the one you'll need if you're pressed for time for dessert.
The basic sundae is boosted with Cafe Liegeois. The ingredients include whipped cream, ice cream, and iced coffee.
Since this is really simply coffee and ice cream, you need the best espresso.
To make a version that's suitable for children, just replace the coffee with chocolate sauce.