The Controversial Way Dunkin's Hot Chocolate Is Made - Tasting Table
Briefly

Dunkin' uses a machine to mix hot chocolate powder with hot water, diluting the drink's richness and leading purists to classify it as hot cocoa instead.
To enhance the experience of Dunkin's hot chocolate, many recommend using warm or steamed milk for a creamier texture and richness that hot water lacks.
Despite its controversial recipe, Dunkin's hot chocolate has a strong fanbase, with many customizing their drinks by adding ingredients like mocha swirl or caramel.
Some Redditors have drawn comparisons between Dunkin's hot chocolate powder and Swiss Miss, suggesting that those who enjoy the latter may appreciate Dunkin's version too.
Read at Tasting Table
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