Which flavor is known for its fruity and peachy essence at Dunkin Donuts?

The flavor known for its fruity and peachy essence at Dunkin Donuts is peach. This flavor is directly associated with the actual fruit, which is characterized by its sweet and juicy qualities. In the context of beverages and desserts, peach flavoring typically highlights the bright, fresh notes that are reminiscent of biting into a peach itself.

In contrast, the other flavors listed do not carry that specific fruity and peachy profile. Coconut offers a tropical and creamy note, raspberry is known for its tartness and berry flavor, and hazelnut presents a rich, nutty essence. Thus, among the choices, peach distinctly represents the fruity profile sought after in the question.