Which fruit is used to flavor Grand Marnier?

The fruit used to flavor Grand Marnier is orange, specifically bitter orange in its classic formulation. Grand Marnier Cordon Rouge combines bitter-orange essence with Cognac and sugar, producing a citrus-forward liqueur with a warm brandy backbone.

The brand was created in France in 1880 by Alexandre Marnier-Lapostolle. Unlike triple sec and Cointreau, which are generally made with neutral spirit, classic Grand Marnier is built around Cognac, giving it more depth, oak, dried-fruit, and vanilla-like notes alongside the orange aroma.

Grand Marnier is commonly served neat as a cordial or digestif, but it is also a cocktail and cooking staple. It appears in drinks such as the Margarita, Sidecar, Cosmopolitan, and B-52, and is famously used in crêpes Suzette. Cherry can appear in some specialty Grand Marnier variations, but it is not the defining flavor of the original liqueur; orange is the canonical quiz answer.