Read more: 31 Popular Coffee Brands, Ranked Though Dunkin' Donuts' frozen coffee contains coffee swirl syrup to give it the .

The secret lies in the sauce: Dunkin ... of caramel, and a dusting of cinnamon sugar. The pumpkin swirl contains a mixture of sweetened condensed nonfat milk, sugar, high fructose corn syrup ...

A small version of the drink, which contains Dunkin' Donuts' original blend of coffee, whole milk, two pumps of Hazelnut syrup, and two pumps of Caramel Swirl syrup, costs $2.59. Like the ...