Vodka

Vodka is an European clear distilled alcoholic drink that has been one of the most popular drinks across the world .

You'll find it to be the most popular spirit in drink making because of it's neutral taste and absence of flavour and colour.

Vodka often replaces Gin in many traditional cocktails

Vodka is known to be good for the heart, and if consumed in moderation, can prove to be good for cardiovascular health

Note that these days there are flavoured Vodka available in the market too, and some cocktails do make use of them.

Dry Vermouth

Vermouth the French for German Wermut, Wormwood in English, is an aromatic fortified Wine, flavoured with various botanicals like roots, barks, flowers, herbs, seeds and spices.

Although traditionally Vermouth was used for medicinal purposes, it has been also served as an apéritif in its modern avatar. The modern Vermouth first appeared in and around the 18th Century in Turin. By the late 19th Century it became very popular with bartenders as a key ingredient in cocktail mixology.

Martini, Manhattan, Rob Roy and Negroni were a few cocktails that Vermouth grew in popularity with. But later during the 20th Century, Vermouth slowly lost its glory and Dry Martinis and extra Dry Martinis with little or no Vermouth gained over the original Martini. Modern Martinis usually have a splash of Vermouth to add that herbacious texture to it.

Historically, there have been two Vermouth types, Dry and Sweet, but with demand variations have come up now. that include extra-dry white, sweet white, red, amber and rose.

Vermouth is produced by adding proprietory mixture of aromatic botanicals to a base wine or a base wine plus spirit or spirit only, which is usually redistilled before adding it to a base of neutral grape wine or unfermented wine must ( freshly pressed grapes and the juice ). After the wine is aromatised and fortified. it is sweetened and the end product is a Vermouth.

Dry Vermouth is what makes the character of the original Martini, and a Dry Vermouth has less sugar and is more herbacious but less spicier than Sweet Vermouth.

Grand Marnier

Grand Marnier is a French liqueur brand. Their most well known product is Grand MarnierCordon Rouge, an Orange flavoured liqueur created by Alexander Marnier Lapostolle in 1880.
It is made from a blend of Cognac brandy, distilled essence of bitter orange and sugar. It is 40% ABV or 80 proof in USA.

Grand Marnier is a French Brand of liqueurs. The most well-known product is the Grand Marnier Cordon Rouge, an orange flavoured liqueur made from a blend of Cognac, brandy, distilled essence of bitter Orange and sugar. The Cordon Rouge was created in 1880 by Alexander Marnier-Lapostolle. It has 40% ABV.
Grand Mariner is full of rich, complex flavours and intrigues of the Cognac, and makes cocktails taste. A Grand Mariner is a blend of Cognac and Triple Sec, it's not a traditional Curacao, it's a similar orange liqueur.