Cloves

Cloves are flower buds of the evergreen clove tree ( Syzygium Aromaticum ) native to the Maluku Islands in Indonesia. Clove is now grown in many countries and is available year round like most exotic spices that were once exclusive to trade routes across the seas. Found in both ground and whole forms. This aromatic spice can be used to season roasts and curries, and flavour hot beverages, and in cocktails, cloves can add a spicy warmth to the drink.

Admiral Nelsons Vanilla Rum

Vanilla is a spice derived from orchids of the genus Vanilla, the spice is obtained from the pods of the Mexican species of flat leaved Vanilla. The characteristic flavour of Vanilla comes from the aromatic compound Vanillin. Up to 85% of a vanilla essential oil is Vanillin.
Natural vanilla flavour is in pure form, a little more complex than plain Vanillin, but most of the times the Vanillin is what is needed to release that familiar flavour in a drink.
Note that when a drink asks for Vanilla extract, it means an extract of real Vanilla from Vanilla pods in an alcoholic suspension and is usually less processes and stronger, while Vanilla Flavour or Vanilla Essence is a processed product made using artificial flavours and colours. While a Vanilla syrup is a sweetened thick condiment with either real organic vanilla flavour or artificial vanilla flavouring.
The thumbs rule is, if you run out of Vanilla extract, go for Maple syrup as a replacement. Also note that artificial vanilla is strong and artificial vanilla flavour comes from Castoreum, a chemical compound that comes from a beaver's castor sacs, which are located between the pelvis and the base of the tail.

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.

Butter

Schnapps is an alcoholic beverage that can be a distilled fruit brandy, a herbal liqueur, infusions and flavoured liqueurs, made by infusing fruit syrups, spices or artificial flavourings to a neutral grain spirit.

Schnapps in German means a strong alcoholic drink and it's usually a 60-80 proof (30% - 40% ABV) beverage.

Butterscotch Schnapps is a Schanpps made by infusing butter and brown sugar in grain spirit, and is designed to taste just like butterscotch caramels and are used in creating sweet cocktails and shots. It is usually 30–42 proof (15% – 21% ABV ) and is weaker than other Schnapps.

The most famous Butterscotch Schnapps is Dekuyper Buttershot Schnapps.

Butterscotch Liqueur is a rich delicious liqueur that tastes like melted butterscotch, tastes of melted butter and brown sugar. It is a clear liqueur, it is scrumptious and it's rich taste makes it a versatile mixer for cocktails.

Butterscotch Liqueur is made by infusing butter and brown sugar in grain spirit, and is designed to taste just like butterscotch caramels and are used in creating sweet cocktails and shots. It is usually 30–42 proof (15% – 21% ABV ).

Peanut Butter is a spread made from ground, dry-roasted peanuts and is prepared with added salt, sweeteners and emulsifiers. It is high on protein and vitamins and dietary minerals. Peanut butter pairs well with whisky and there is a peanut butter whiskey in America. Note that people with Peanut allergy should avoid using Peanut Butter and if preparing for a party, this is best avoided to prevent unforeseen emergencies. Peanut is a legume, and it’s been noted that people with peanut allergy can eat tree nuts so a peanut butter can be replaced with cashew or almond butter, but even safer alternatives would be soy or pea butter.