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.

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.

Orange Juice

Orange Juice is an excellent source of Vitamin C, one cup contains twice the daily recommended value. Vitamin C supports the immune system and helps fighting the common cold. The folate in Orange juice supports healthy fetal development. It is low calory and thus is already a qualified alternative to cola fizz in your cocktail if you want to keep your drinks acceptably healthy.

Orange Juice being citrus and naturally sweet and sour, it literally goes with almost any liquor, and of course Vodka being neutral, the best known pairing is with Vodka. But goes well with Dark Rum too, and you get the Planter's Punch, mix it with Champagne and you have made a mimosa, or with tequila to make a tequila sunrise.

Ice

Ice is so obvious in most drinks, be it a straight drink or a mixed drink, that we often forget it's importance or even reason behind using a crystal clear good quality ice in a glass of whisky, or crushed ice in a tall glass to enjoy a cocktail.

Ice tempers a hard liquor, and as is in the case of whisky for example, if you prefer the flavours of whisky reach your nose without the hard note of spirit lingering around, or want to avoid the mild sting of a neat whisky, a cube of ice mellows the strength down a little and as it melts slowly, the aroma and flavour is released from the whisky slowly and makes whisky progressively weak, lingering and palatable.

Ice in Vodka helps release the little flavour a Vodka has, slowly, instead of letting the Vodka hit your nose all at once,

In mixed drinks, ice plays an important role in creating the perfect temperature a certain drink requires and bartenders use ice in several different ways, crushed ice for long drinks that will allow the cocktail to slowly water down like a Mint Julep, Moscow Mule, Rum Swizzle, Sherry Cobbler and other Tiki drinks, a large block or cubes of ice for drinks that are spirit heavy, such as the Old Fashioned, Negroni, and Manhattan