15.3 Highballs, Collinses & Sparkling Cocktails

Key Takeaways

  • Highballs are built directly in the serving glass over ice and topped with a carbonated mixer, which is why they must be assembled at the last moment.
  • The Tom Collins is gin-based while the John Collins is whiskey-based, and this is the single most testable pair in the group.
  • The Moscow Mule is vodka, lime and ginger beer served in a copper mug, and the Dark and Stormy is its black-rum counterpart, trademarked to Gosling's Black Seal.
  • The Paloma and the Dark and Stormy appear in the Exam Guide's service scenarios even though neither is on the 33-drink theory cocktail table.
  • The French 75 is gin, lemon and sugar topped with Champagne, and is the sparkling member of the sour family rather than a true highball.
Last updated: August 2026

Highballs, Collinses & Sparkling Cocktails

The final group on the CMS-A list is the simplest to make and the easiest to make badly. A highball is a spirit lengthened with a carbonated mixer and served over ice in a tall glass. There is nowhere to hide: the quality of the ice, the temperature of the mixer and the freshness of the carbonation are the whole drink.


1. The Construction Principle

+-----------------------------------------------------------------------------+
|                     BUILDING A HIGHBALL CORRECTLY                           |
|                                                                             |
|   1. Chill the glass; fill it COMPLETELY with ice.                          |
|      (More ice = SLOWER dilution, not faster. A half-filled glass is the    |
|       single most common service error.)                                    |
|   2. Add the spirit and any non-carbonated ingredients.                     |
|   3. Add the carbonated mixer LAST, poured gently down a bar spoon or the   |
|      inside wall of the glass to preserve the bead.                         |
|   4. Stir ONCE, briefly, or not at all. Agitation drives off CO2.           |
|   5. Garnish and serve IMMEDIATELY.                                         |
+-----------------------------------------------------------------------------+

The same logic governs sparkling wine service: CO₂ is the ingredient a sommelier is paid to protect.


2. The Collins Family

CocktailBase spiritModifiersGarnish
Tom CollinsGin (classically Old Tom gin)Lemon juice, simple syrup, soda waterLemon slice and cherry
John CollinsWhiskey — bourbon or rye (historically genever)Lemon juice, simple syrup, soda waterLemon slice and cherry

This is the highest-value pair in the section because the two drinks are identical but for the base spirit, and CMS-A lists both deliberately.

[!TIP] The mnemonic that survives contact with an examiner: "Tom takes gin" — Tom Collins, Old Tom gin. Whatever is left over goes to John, which in modern American usage means whiskey. The historical John Collins was made with genever, the Dutch malt-based ancestor of gin, and mentioning that distinction demonstrates real depth without contradicting the modern answer.

A Collins is structurally a sour lengthened with soda: spirit, lemon, sugar, then soda water. Recognising that connects this group back to section 15.2 and reduces what you have to memorise.

Test Your Knowledge

A guest orders a John Collins and asks how it differs from the Tom Collins their companion just ordered. What is the correct explanation?

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D

3. Highballs, Mules and Juice Drinks

CocktailBase spiritModifiersGarnish
MojitoWhite rumFresh mint and lime muddled with sugar, topped with soda waterMint sprig, lime wheel
Moscow MuleVodkaLime juice, ginger beerLime wedge, mint; served in a copper mug
GreyhoundVodka (or gin)Grapefruit juiceGrapefruit wedge
Sea BreezeVodkaCranberry juice + grapefruit juiceLime wedge
Pimm's CupPimm's No. 1Lemonade or ginger aleCucumber, mint, orange, strawberry

Notes that earn marks

  • Mojito — mint should be pressed, not shredded. Bruising the leaves releases fragrant oils; tearing them releases bitter chlorophyll. This is a genuine technique point a Master Sommelier may probe.
  • Moscow Mule — the copper mug is not decoration. Copper conducts heat rapidly, so the vessel frosts and stays cold. It is also a marketing artefact of the 1940s campaign that launched vodka in the United States.
  • Greyhound and Salty Dog — a Greyhound is vodka and grapefruit juice; add a salted rim and it becomes a Salty Dog. That one-ingredient conversion is a classic paired question.
  • Sea Breeze, Bay Breeze, Cape Codder — the family shares a vodka and cranberry base. The Sea Breeze adds grapefruit; the Bay Breeze adds pineapple; the Cape Codder is cranberry alone.

4. Sparkling Cocktails

CocktailBaseModifiersGarnish
French 75GinLemon juice, simple syrup, topped with ChampagneLemon twist; served in a flute
Kir Royale(none)Crème de cassis topped with ChampagneLemon twist
Champagne Cocktail(none)Angostura-soaked sugar cube topped with ChampagneLemon twist

The French 75 — named for the French 75 mm field gun of the First World War — is the sparkling member of the sour family: gin, lemon and sugar shaken and then lengthened with Champagne rather than soda. A cognac-based version is sometimes called a French 125.

[!NOTE] Sommelier's judgement on sparkling cocktails. Never build one with a wine you would sell by the glass on its merits. Vintage Champagne and prestige cuvées belong in a stem, not under crème de cassis. A well-made non-vintage brut or a good Crémant is the correct commercial and hospitality choice — and being able to say so tactfully to a guest who has just ordered a Kir Royale with your best Champagne is precisely the salesmanship the Hospitality and Service examination rewards.

Test Your Knowledge

Which conversion correctly describes the relationship between two drinks on the CMS-A cocktail list?

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D
Test Your Knowledge

Why should a carbonated mixer be added last and poured gently down the inside wall of a fully iced glass?

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D

5. Two Drinks the Exam Guide Names That the Theory List Does Not

The 33-drink COCKTAILS table in the curriculum guide is the Theory list. The Exam Guide gives a second, overlapping list when it describes what can happen at the Hospitality and Service Practical, and two drinks appear there that are not on the theory table:

Describe ingredients, mixers, and garnishes of standard classic cocktails. Examples: Mojito, Gimlet, Moscow Mule, Negroni, Rusty Nail, Manhattan, Side Car, Cosmopolitan, Caipirinha, Vesper, Greyhound, Margarita, Paloma, Mint Julep, Dark and Stormy, Kir Royal, White Russian, Old Fashioned, Tom Collins, etc.

Both are highballs, which is why they belong here.

CocktailBase spiritModifiersGarnish
PalomaBlanco tequilaPink grapefruit soda, fresh lime, a pinch of saltLime slice; salt rim optional
Dark and StormyBlack rum (Gosling's Black Seal)Ginger beer, limeLime wedge

Paloma

Mexico's genuinely popular tequila drink — far more so domestically than the Margarita — and a highball rather than a sour. It is built in a tall glass over ice: tequila, a squeeze of lime, a pinch of salt, then topped with pink grapefruit soda and stirred gently. The International Bartenders Association codifies it at roughly 50 ml tequila, 5 ml lime and 100 ml grapefruit soda.

Set it against the Margarita and the contrast teaches both drinks: the Margarita is shaken, sweetened with an orange liqueur, and served with a salt rim as standard; the Paloma is built, sweetened and lengthened by grapefruit soda, and the salt rim is optional. Same spirit, different family.

Dark and Stormy

Bermuda's national drink, and the reason to be careful with the name: Gosling's holds the trademark, so a Dark and Stormy is specifically Gosling's Black Seal rum floated over ginger beer, poured last so the dark rum sits as a visible layer on top. Made with any other rum it is, strictly, something else. Structurally it is the rum sibling of the Moscow Mule — the same lime-and-ginger-beer highball with the vodka swapped out.


6. Mixers: the Half of the Drink Nobody Studies

Because "mixers" is one of the three things the curriculum names as examinable, be able to distinguish them:

MixerWhat it actually isWhere it appears on the list
Soda water / club sodaCarbonated water; club soda carries added mineral saltsTom and John Collins, Mojito, Americano
Tonic waterCarbonated, sweetened, and bittered with quinine — the same compound that defines the quinquina apéritifsGin and tonic; not itself on the CMS-A list
Ginger beerSpicier and fuller-bodied, historically brewed and fermentedMoscow Mule, Dark and Stormy
Ginger aleA sweeter, lighter carbonated soft drink, not a substituteAn accepted alternative in a Pimm's Cup
Lemonade (British)Sweet sparkling lemon soft drink, not the still American styleThe classic Pimm's Cup

[!TIP] The lemonade trap is a real one. A guest ordering a Pimm's Cup means the British sparkling lemonade; serving still American-style lemonade produces a flat, cloying drink. If your bar has no British lemonade, ginger ale is the accepted substitution — and saying which one you are using, and why, is better hospitality than silently swapping it.

Test Your Knowledge

A guest asks the sommelier to explain how a Paloma differs from a Margarita, since both are tequila drinks with lime. What is the correct answer?

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D
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