Dunkin’ Iced Coffee fans can now sip their favorite bakery flavors! Dunkin’ Iced Coffee Bakery Series introduces uniquely-Dunkin’ flavors to ready-to-drink coffee. Coffee Cake Muffin Iced Coffee combines Dunkin’s proprietary iced coffee blend with real milk and cane sugar plus the sweet cinnamony taste of coffee cake inspired by Dunkin's Coffee Cake Muffin.