Chouchen (“shoo-shen”) is a Breton drink made by fermenting honey diluted in water over several months. It is 14 to 16% alcohol, served cool and sipped, as an apéritif or with dessert. Nothing is distilled and nothing is cooked: it is a fermented drink, like wine or cider, not a spirit.
The honey plays the part of the grape. Buckwheat honey, common in Brittany, gives a dark drink with an almost liquorice edge. A flower or acacia honey gives something much softer and more floral. Two chouchens can have very little in common, which is why opinions on it are so divided.
The name, meanwhile, misleads everyone: “chouchen” is a recent word, first used at the very end of the 19th century by a merchant in Rosporden. Breton had other words before it, including “mez”. None of this has druidic roots, whatever the marketing says.