The Glenmorangie Signet is an intensely rich Highland single malt with a vast complexity and clouded in secrecy. While this single malt carries a no-age statement it is believed to incorporate some of the rarest and oldest Glenmorangie (ranging from 35 to 40 years old). The sweetness and spicy notes evidently arise from their unique roasted chocolate malt and individually designed American white oak casks.