Sugar

Brown Sugar is a sucrose sugar with a distinctive brown colour from the presence of molasses, it is a partially refined or unrefined sugar containing sugar crystals and residual molasses giving it a distinctive taste and flavour of crystallised molasses or toffee. The taste of dark brown sugar is described as a caramel taste with a deep molasses flavour.
Brown sugar is used in cocktails where a caramel candy or toffee flavour is expected.

Caster Sugar is finely ground granulated sugar. It is not as fine a powdered confectioners' sugar and has a little grit to it. It is somewhere between confectioners' sugar and granulated sugar, and melts in mouth with a mild spicy feel to the tongue

Vanilla Sugar is the regular granulated sugar infused with vanilla flavour, by using vanilla pods and seeds to flavour the sugar. A home made alternative is to use vanilla sticks or pods in a jar of sugar and leave it sealed for 4 weeks to allow the vanilla flavour to infuse. Or to use granulated sugar and vanilla extract and blend in a mixer, although this ends up in powdered sugar.

Brown Creme De Cacao

Creme de Cacao is a chocolate liqueur that has probably been produced and sold in France since as early as 1666. In America a Chocolate wine was popular in the 18th Century, it's ingredients included sherry, port, chocolate and sugar.

A modern recipe for chocolate liqueur at home lists the ingredients as chocolate extract, vanilla extract and simple syrup and in purest form, chocolate liqueur is clear and colours may be added.

Creme de Cacao can be consumed straight and as an apertif, in cocktails and in desserts, in dessert sauces, cakes and truffles.

Cognac

Cognac is a geographically specific Brandy, named after the commune Cognac, France. Cognac is a commune in the Charente department in the south-west of France.

Cognac production is regulated by the French Appellation d'origine with specific methods of production and specific grapes from designated regions to be used to meet the legal requirement to be declared a Cognac.

Methods include a double distillation in copper pot stills and aged at least two years in French oak barrels from Limousin or Troncais. Cognac is also an eau de vie.

Cognac has a fascinating history and it's association with Napoleon Bonaparte, specifically the Emperor's association with the Courvoisier cognac has made Cognac one of the most celebrated and sought after alcoholic beverage ever.


Napoleon Bonaparte visited Bercy in 1811 as documented in a historic painting by Etienne Bouhot and later was credited with saying he wanted his artillery companies to have a ration of cognac during the Napoleonic Wars - Wikipedia
The current legally defined categories of Cognac are
V.S.: Eau de vies with a minimum age of two years. Also known as Very Special or Three Stars.
V.S.O.P.: Eau de vies with a minimum age of four years. Also known as Very Special Old Pale or Reserve.
X.O.: Eau de vies with a minimum age of six years

Cream

Cream can be used to make a creamy cocktail, but when you make a cream cocktail make sure you whip and make your own version. You can also go for a heavy whipped cream which is thicker than regular cream and milk fat can be between 30%-40%.
For a rich and creamy cocktail recipe, combine heavy cream with one shot of alcohol and powdered sugar, then whip it until soft peaks form for a fluffy consistency or you can use it as a loose cream.

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.