Amaretto

Amaretto is a liqueur, a sweet Italian liqueur that originated in Saronno. There are different brands and each have their slight variations and ingredients vary from apricot kernel, bitter almonds, peach stones or almonds, all these are natural sources of the benzaldehyde that brings the almond flavour to the liqueur. Amaretto usually contains a 21% to 48% Alcohol by Volume.

Amaretto liqueur can be drunk straight or used as an ingredient in mixed drinks, or with coffee.

The name Amaretto originated from the Italian word amaro, meaning bitter. Amaretto's bitterness is derived from the drupe kernel and although the bitterness of Amaretto tends to be mild, sweeteners and at time sweet almonds are added to enhance the flavour of the final product.

Maui Blue Hawaiian Schnapps

To understand Maui Blue Hawaiian Schnapps one needs to understand two legendary cocktails, firstly, the Blue Hawaii cocktail created by legendary bartender Harry Yee of the Hilton Hawaiian Village, a tropical cocktail made of Rum, Pineapple juice, Blue Curacao, Sweet and Sour mix and optionally, Vodka and secondly, Blue Hawaiian, a riff of Blue Hawaii, probably created by Don the Beachcomber in LA, USA. The differnce between Blue Hawaii and Blue Hawaiian is that the later uses cream of coconut in place of sweet and sour mix. ( source Difford's Guide )

The Maui Blue Hawaiian Schnapps is a tropical fruit liquor. It's bright and blue, a fun tropical drink. and is made with coconut and pineapple flavors with a hint of orange which is a great mixer for a tropical cocktail, and is similar in style to the Blue Hawaii and Blue Hawaiian cocktails.

Midori Melon Liqueur

A liqueur is an alcoholic beverage made mostly from rectified neutral spirits flavoured with sugar, fruits, herbs and spices. Liqueurs are often served as aperitif or digestif or used as bitters, and some are ceremonial or have regional cultural significance.
Most liqueur recipes that date back to the medieval or early modern era tend to have secret recipes and legends following them trough centuries. Liqueurs mostly began in the laboratories of pharmacists as medicines or at homes as ways of preserving seasonal fruits, or were created by monks in their monasteries. and then took off as fragrant, flavourful liqueurs, either filtered to be clear or cloudy.
Liqueurs are created by infusing or macerating fruits and herbs in neutral grain spirit, brandy base like cognac, rum, vodka or even whisky and then filtering the infused alcohol to produce the unique sweet beverage.

Pineapple Juice

Rich in antioxidants, this juice pressed from the pulp of the Pineapple is a good protection against cell degeneration, It contains bromelain, a group of enzymes known to reduce inflammation, improve digestion and boost immunity. In drink mixing, there is nothing like the tropical flavour of pineapple juice to add that tropical freshness and nuance to a cocktail.

In drink mixing pineapple having a fruity tropical aroma pineapple juice is a good companion for tropical fruits such as mango, banana, passion fruit, and also pairs well with oranges and grapefruit juice.

Pineapple juice is the juice pressed out of the pulp of the pineapple fruit, several varieties of pineapple are used to manufacture commercial pineapple juice. High on Vitamin C and enzymes that have been shown to activate healthy immune response, it’s a good juice to start a day. The enzyme bromelain in pineapple juice, triggers analgesic response in the body to fight pain and reduce swelling. In cocktails, Pineapple juice goes best with Vodka and is often a regular juice in many Vodka cocktails.

Sour Mix

Sweet and Sour Mix, also Whiskey Sour Mix or Margarita Mix or Daiquiri Mix is a versatile mix in many cocktails.
This is a yellowish-green coloured concoction, with equal portion of lemon or lime juice with a simple syrup. When this mix is shaken vigorously with ice it produces a pearly-white liquid mixture ready for your cocktail.

Sweet and Sour Mix, also Whiskey Sour Mix or Margarita Mix or Daiquiri Mix is a versatile mix in many cocktails.
This is a yellowish-green coloured concoction, with equal portion of lemon or lime juice with a simple syrup. When this mix is shaken vigorously with ice it produces a pearly-white liquid mixture ready for your cocktail.

Southern Comfort

Southern Comfort is an American, fruit flavoured whiskey liqueur. Originally created by bartender Martin Wilkes Heron in New Orleans in 1874, the brand has gone through closure during the Prohibitions and transitions and transfer of ownership.

Spirit Historian Chris Morris describes the original recipe of Southern Comfort in an episode of The Thirsty Traveler titled "A River of Whiskey"

Heron began with good-quality bourbon and would add: An inch [2.5 cm] of vanilla bean, about a quarter of a lemon, half of a cinnamon stick, four cloves, a few cherries, and an orange bit or two. He would let this soak for days. And right when he was ready to finish, he would add his sweetener: he liked to use honey. - Wikipedia

In the United States, Southern Comfort is available as 42 US proof (21% ABV), 70 US proof (35% ABV), 100 US proof (50% ABV), and 60 US proof (30% ABV) in Australia. Varieties including additional flavorings, such as lime and caramel, were introduced by Brown–Forman in the latter years of their ownership. These were discontinued by Sazerac - Wikipedia

Triple Sec

Triple-Sec is an Orange flavoured liqueur from France. It is made by macerating sun dried orange peel in alcohol for a day or more before a three step distillation. Triple Sec has a 15% to 40% ABV.

The Triple Sec name refers to the process of distillation. Sec in French means dry or distilled and triple refers to the triple distillation process.

It's been a popular liqueur for more than 150 years, the Dutch East India Company created orange liqueurs by steeping orange peels in alcohol from the island of Curaçao and called it Curaçao liquor, and unlike Triple Sec, the Dutch added spices and herbs to the orange and Curaçao comes in a variety of colours such as clear, orange or blue. Blue Curaçao being the most used of them, in cocktails. Triple Sec is made from neutral spirits and the Orange peel used is harvested from oranges that have the skin still green, so that the essential oils are still in the skin and has not been absorbed into the flesh. This gives Triple Sec the intense flavour.

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.