"Grand Marnier-or "GrandMa" as some cocktail geeks gleefully shorthand it-remains one of the classics. Although it's Cognac-based it's a versatile match for other spirits too. The liqueur is extremely aromatic with lots of sweet and bitter orange notes exploding out of the glass. Look for a warm honeyed flavor and a nice burst of orange peel and spicy cinnamon and ginger on the long finish."
93 Points Wine Enthusiast