What term is also used to refer to sweet flavors?

The term that is commonly used to refer to sweet flavors is "Swirls." In the context of food and beverage, especially at a coffee shop like Dunkin' Donuts, "swirls" typically describe flavored syrups or mixtures that create a sweet taste when added to drinks or food items. These swirls can be various flavors such as caramel, vanilla, or mocha, which enhance the sweetness and overall flavor profile of the product.

Flavored could relate to many types of flavors, not just sweet ones, while sweeteners more specifically refer to substances used to impart sweetness. Essences typically refer to more concentrated flavors that may not always be sweet, as they can encompass savory or herbal flavors as well. Therefore, swirls is the most suitable choice when specifically referring to sweet flavors.