Gary Regan or US cocktail stardom created this his own because he was "unable to find a decent bottling of orange bitters". It resulted in this aromatic bitters branded with his name, and branded with the statement - "The Finest Orange Bitters for Man or Beast".
It's produced by Sazerac Company in the US with flavour of orange and spices - New Orleans style of flavours.
Gary uses his bitters in a few of his favourite drinks - the original Martini and the Bronx Cocktail, a varitation of the Martini with dry gin, both sweet and dry vermouth and fresh orange juice. Try Regans Orange Bitters in drinks where a little spicy orange will lift the drink. It works well with some bourbon cocktails too.