Final answer:
A JJ Bean Cappuccino is a Viennese specialty that is served with whipped cream and powdered sugar, differing from a Starbucks cappuccino which is more traditional with espresso and steamed milk foam.
Step-by-step explanation:
A traditional JJ Bean Cappuccino is a Viennese specialty, characterized by its strong black coffee base served in a glass, which is then topped with whipped cream and accompanied by powdered sugar on the side. This particular cappuccino stands out because it is not only a coffee beverage but also doubles as a dessert.
Starbucks cappuccinos, in comparison, focus more on the blend of espresso and steamed milk topped with a deep layer of foam. While both JJ Bean and Starbucks cappuccinos include coffee and are designed to be sipped and savored, the JJ Bean version tends to be more indulgent with its addition of whipped cream, whereas the Starbucks variant adheres to the traditional Italian-style cappuccino that highlights the espresso and milk foam.