Four Roses Bourbon Whiskey

American's don't need to be lectured on Bourbon, but still, let's put it in record like all other spirits. A Bourbon in American spirit is a barrel-aged distilled liquor made primarily from corn. The name might have been derived from the French Bourbon dynasty, or from Bourbon County in Kentucky, or Bourbon Street in New Orleans, both named after the French Dynasty.

Technically, most whiskey made in America are legally classified as Bourbon, although Bourbon is in spirit a Southern Whiskey with special connection to Kentucky. Note than although Tennessee Whiskey is classified as Bourbon, Tennessee distilleries do not prefer their whiskey to be unique and referred to as Tennessee Whiskey only.

Distilling came to Kentucky in the late 18rth Century with the Scots, Scot-Irish and other settlers including English, Welsh, German and French, and they brought with them their distilling techniques and ageing processes in charred oak barrels. The charring is what gives the Bourbon the brownish colour and distinctive taste.

To be a legal Bourbon, a whiskey has to meet the following criteria

Produced in the United States and Territories (Puerto Rico) and the District of Columbia
Made from a grain mixture that is at least 51% corn
Aged in new, charred oak containers
Distilled to no more than 160 (U.S.) proof (80% alcohol by volume)
Entered into the container for aging at no more than 125 proof (62.5% alcohol by volume)
Bottled (like other whiskeys) at 80 proof or more (40% alcohol by volume)

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.

White Creme De Menthe

Creme de Menthe is the French for mint cream. It is a sweet mint flavoured alcoholic beverage. Made with Corsican mint leaves, steeped in grain alcohol for several weeks and then filtered and sweetened to create the liqueur.

There are two variations of creme de menthe, white and green, green Creme de Menthe is coloured green by adding mint leaves to the mint extract, otherwise both are similar in taste and flavour.

Note: If a bottle of Creme de Menthe is hard to come by, or not in a mood to buy a liqueur, substitute the Creme de Menthe Liqueur with a Creme de Menthe Syrup and Vodka.

Angostura Bitters

Angostura Bitters is a concentrated bitters based on gentian, herbs and spices, from the House of Angostura in Trinadad and Tobago. Note that the Angostura Bitters from the House of Angostura do not contain Angostura bark.
However, Angostura Bitters or Angobitter offered by other brands like Riemerschmid and Hemmeler, contain angostura bark, possibly to justify using the word "Angostura" in their names.