The company has signed a deal with beverage company Lucas Bols which means the Dutch group gets exclusivity of the import and distribution of Muff's whiskey, gin, and vodka in the US. Muff Liquor ...
As to where the blue part began, the story's a little cloudy, but it's thought that Lucas Bols (who founded the distillery of the same name), was the one who added the blue coloring to the drink.