A brilliantly diverse category, encompassing the monastic liqueurs like Chartreuse alongside Italian classics such as Amaretto and Sambuca, cult drinks like Jagermeister and old stagers like Kummel. Many herb liqueurs contain dozens of different ingredients, the exact constitution and combination of which is invariably a jealously-guarded secret.
A pomegranate twist on sambuca from Luxardo, adding sweet and sour fruity flavours to the classic anise. This can be enjoyed on its own or used to create a visually dazzling layered cocktail with a cream liqueur of your choice.
Byrrh was founded in the 19th century in France and this Grand Quinquina is a wine-based aperitif, with no added sugar - all the sweetness comes from the muscat base wine. Other ingredients include coffee, bitter orange and cocoa, as well as as the finest cinchona (quinine) barks. This is the kind of old-school cocktail ingredient that is really coming back into vogue.
As if almost single-handedly transforming the bitters category into a hotbed of innovation, and bottling ridiculously good ryes and fruit liqueurs weren't enough, here's The Bitter Truth's version of the Alpine herbal digestive liqueur, produced by the famous Dolin firm in Chambery, France (more famous for their vermouth). As always, the packaging is perfectly-judged - this Elixier will be a hit.
A development on the original Unicum, the dark bitter liqueur that's one of Hungary's national drinks, with less bitter herbs and more citrus. Excellent frozen or over ice and a great cocktail ingredient, adding a burst of bitter spice and citrus to everything it touches.
A rum-based liqueur made in Jamaica for The Bittter Truth, Pimento dram is based on allspice (aka pimento or Jamaican pepper) and also includes the likes of cloves, nutmeg adn cinnamon. A highly sought-after cocktail ingredient of yore.
A long standing traditional French aperitif, made by infusing wine with gentian and cinchona, amongst other ingredients, to produce a sweet, sour and bitter drink that's excellent as a pre-prandial tipple.
A vanilla liqueur from Dutch producer Zuidam, who also produce their own gin, vodka and single malt and rye whiskies. Made with Madagascan vanilla pods, hand cut into 1mm parts and combined with neutral spirit to marry for at least 6 months.
Formerly known as Amaretto Mascarada, Saliza is made by the famous grappa producer Tosolini and is a cut above standard-issue amarettos with a delightful lightness and intense yet elegant marzipan flavours.
A relatively modern liqueur bitters, having been invented in Denmark in 1964, Gammel Dansk contains 29 natural ingredients and is the second best-selling spirit in its native country, producing over 4 million litres per year.
Released in July 2013, but based on the original 1951 version (hence the name) this combined the aniseed flavours of the 'white' expression with fruit extracts - strawberry, raspberry, pink grapefruit and blackcurrant. Best served as a long drink with one part added to seven parts water and topped with ice cubes.