In a nutshell:
The delicious zestry, fresh, floral and sweet 'triple-sec' orange liqueur originating from Angers in the Loire valley.
Cointreau is a very well known name and probably the most famous triple-sec orange liqueur of them all. It's made from blend of sweet and bitter orange peel to a 150 year old recipe. A great cocktail base, essential in a Margarita, or really good all by itself served simply over ice.