It's XO.
The perfect balance of intense flavours have been patiently evolved and nurtured for at least two decades to produce what is consistently recognised as one of the finest XOs in the world. Courvoisier XO Imperial is a very old blend well matured cognacs from the exclusive Grande Champagne cru, along with selected aged spirit from the Petite Champagne
I've never tried cognac and I don't plan too, single malt is an expensive vice already I don't need a worse one!