What type of sauce is added to the edges of the cup before pouring the Grande caramel ribbon crunch frappuccino?

The Grande Caramel Ribbon Crunch Frappuccino features dark caramel sauce added around the edges of the cup. This sauce not only enhances the drink's visual appeal but also adds depth to the overall flavor profile. The choice of dark caramel sauce is integral, as it provides a richer, more intense caramel experience compared to lighter versions. This contrast in flavor complements the sweetness of the frappuccino itself and the various components like the blended ice, milk, and whipped cream. The application of this sauce creates a cohesive taste experience, balancing the sweetness of the drink with the complex flavors of the dark caramel.