Grand marnier (french pronunciation: ​[ɡʁɑ̃ maʁnje]) is a french brand of liqueurs. the brand's best-known product is grand marnier cordon rouge, an orange-flavored liqueur created in 1880 by alexandre marnier-lapostolle. it is made from a blend of cognac brandy, distilled essence of bitter orange, and sugar, containing 40% alcohol (70 proof in uk, 80 proof in us). it is commonly consumed "neat" as a cordial or a digestif, and can be used in mixed drinks and desserts. popular examples of the latter include crêpes suzette and crêpes au grand marnier. aside from cordon rouge, the grand marnier line includes other liqueurs, most of which can be used similarly.

Source: Wikipedia