The Prague Mule is a variation of the classic Moscow Mule cocktail, but with a Czech twist. Instead of using vodka, this cocktail is made with Becherovka, a Czech herbal liqueur, mixed with ginger beer and lime juice. The combination of the herbal notes from Becherovka and the spicy kick from ginger beer creates a flavorful and refreshing cocktail. It is typically served in a copper mug, just like the original Moscow Mule.