What is added to the espresso in the Iced Irish Sin before pouring into the iced cup?

In the Iced Irish Sin, a breve—made with steamed half-and-half—is added to the espresso before it is poured into the iced cup. This ingredient significantly influences the drink's texture and creaminess, creating a rich and smooth flavor profile that balances well with the espresso. Using breve instead of regular milk or cream enhances the overall indulgence of the beverage, which is essential when crafting a decadent iced coffee drink.

The other options involve flavors or ingredients that do not contribute to defining this specific beverage. While white chocolate, caramel, or chocolate could each create interesting variations of coffee drinks, they are not components of the Iced Irish Sin. The traditional recipe emphasizes the creamy nature of the breve as a key element in achieving the drink's signature taste and mouthfeel.