Between the Sheets
Between the Sheets is the Sidecar after lights-out: the same cognac, orange liqueur and lemon, with a measure of white rum slipped in and the name doing the rest. It belongs to 1930s Paris, usually credited to Harry MacElhone of Harry’s New York Bar, whose house style was exactly this kind of respectable scandal, and it travelled the interwar circuit from Paris to the cruise liners with its eyebrow permanently raised. The structure is a Sidecar rebalanced: rum and cognac splitting the base evenly, the citrus and liqueur pulled back a notch so two spirits fit where one stood. The rum lightens the cognac’s oak and the cognac deepens the rum’s sugar, and the drink lands brighter than a Sidecar with more going on under the surface. It drinks stronger than it reads, which was presumably the intention of everyone involved, and it remains the best gateway between the brandy and rum shelves: one glass with a foot on each.
Glassware: Coupe Glass
Garnish: Lemon Twist
Ingredients
30ml
Half the split base: oak and gravity. It need not be grand; VS with personality beats VSOP without.
30ml
The other half, meeting the cognac as an equal: a white rum with body brightens and sweetens where the brandy deepens. Neutral rums leave the drink lopsided.
30ml
The Sidecar's sweetener, inherited intact. Orange is the only thing in the glass capable of binding two spirits this different, and 22ml is the measure that does it without sweetening the drink.
20ml
Twenty millilitres, and the official measure: two spirits and a liqueur leave less room for acid than a Sidecar offers, but the drink still needs a clear line running through it.
Instructions
Add the cognac, rum, triple sec and lemon juice to a shaker with ice.
Shake hard for 10 to 12 seconds.
Double strain into a chilled coupe.
Express the lemon twist over the surface and drop it in.
Source: the IBA (Official IBA specification; method ours). Last checked 12 August 2026.
Expert Tip
The lemon is held at 20ml and it is the first thing people increase without tasting. Three sweet-leaning ingredients leave less room for acid than the volume suggests, and pushing the lemon past that pulls the drink thin and sour. Taste it before you adjust anything. Both spirits need character, because both are load-bearing. A neutral column-still white rum leaves the cognac talking to itself, and a flat cognac lets the rum's sugar run unopposed. VS with personality beats VSOP without, and a rum with some body beats a clean one. Express the twist and drop it in. The drink is all citrus and spirit with nothing sweet sitting on top of it, and the oil is what gives the first sip its brightness.
Behind the Between the Sheets
Flavour Profile
The Origin
Interwar Paris, almost certainly Harry’s New York Bar, whose proprietor Harry MacElhone had a gift for drinks whose names did half the marketing. It rode the 1930s circuit of hotel bars and ocean liners, a Sidecar variation for a crowd that considered the Sidecar a starting point, and the name has kept it on menus through every revival since.
The Split Base
Equal cognac and white rum is the drink’s engineering: the rum brightens and sweetens, the cognac supplies oak and gravity, and neither reads as the base because both are. A characterful white rum with some body suits it better than a neutral one, and the cognac need not be grand: VS with personality beats VSOP without.
Against the Sidecar
Set beside its parent the differences are instructive: less lemon, no sugar rim, and a lighter, more energetic palate that hides its strength better. The Sidecar is the winter reading, all cognac and consequence; Between the Sheets is the same idea with the windows open.
How to Serve It
Up, very cold, late: it is a nightcap-hour drink by name and by nature, and it lands at full spirit strength behind the citrus. One is elegant, two is a decision, and the twist is not optional: the drink wants that last bright edge.
The Two Spirits
Cognac and white rum are not natural partners, which is what makes the drink interesting rather than merely strong.
Cognac brings oak, dried fruit and weight; it moves slowly and finishes long. White rum brings cane sweetness, a lighter body and a brighter top. Put them at equal measures and neither can dominate, so the drink reads as a single spirit that does not actually exist: heavier than rum, brighter than brandy, and recognisably neither.
That balance is fragile. Move to 40ml of cognac against 20ml of rum and it becomes a Sidecar with an odd finish. Reverse it and the cognac turns into a seasoning. Thirty and thirty is not a rounding of convenience, it is the reason the drink works at all.
Why It Drinks Stronger Than It Reads
There is 75ml of alcohol in this glass before dilution, spread across three bottles, against 20ml of lemon juice. By the arithmetic it sits closer to a Martini than to a sour.
Make it at home
The Spirit
CognacGrape brandy from the Cognac region of western France, twice distilled in copper pot stills and aged in French oak. Ugni Blanc does nearly all the work, a thin acidic wine that makes poor drinking and excellent spirit, and the age classifications on the label are legally defined minimums.
More to explore
Frequently Asked Questions
What is the difference between this and a Sidecar?
Where does the name come from?
What rum works best?
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Sidecar
The Sidecar is one of the great drinks of the years after the First World War, and its paternity has never been settled. It appears in 1922 in both Harry MacElhone’s ABC of Mixing Cocktails and Robert Vermeire’s Cocktails: How to Mix Them, with each author crediting someone else: MacElhone named Pat MacGarry at Buck’s Club in London, while Vermeire named MacElhone himself at Harry’s New York Bar in Paris. The dispute is unlikely ever to be resolved. The structure is a sour built on cognac, with Cointreau as the sweetening modifier and fresh lemon as the acid. The cognac brings dried fruit and oak warmth, the Cointreau brings clean orange and the sweetness that answers the lemon, and the lemon keeps the whole thing from turning heavy. It is also among the most ratio-sensitive drinks in the classical canon, which is the argument against the sugar rim some versions carry: the balance here is calibrated without one.
White Lady
The White Lady was created by Harry MacElhone at Ciro's Club in London in 1919, in an early form built on crème de menthe, and then substantially revised by MacElhone himself at Harry's New York Bar in Paris in 1929, when he replaced the mint with gin and added egg white. The earlier drink carries the same name and is a different thing entirely. The 1929 revision is the one ordered today. Gin, Cointreau and fresh lemon in a ratio that seats the gin clearly in front, with the liqueur and the acid holding a balanced frame around it. The official specification stops there; MacElhone's own rebuild adds an egg white, and that version is below. It is often described as a Sidecar made with gin, which is accurate as far as it goes and misses the specific relationship between juniper and Cointreau's orange. The two sit at adjacent points in the canon rather than one being a substitution of the other.
El Presidente
El Presidente was created in Havana during the 1910s or 1920s, most likely at the Vista Alegre bar, and named in honour of Mario García Menocal, President of Cuba in that era. It emerged from the same scene that produced the Daiquiri and the Mojito, shaped by Prohibition-era American tourists who arrived with money, time and a thirst their own country was legally denying them. It is a stirred rum drink in the Manhattan tradition: white rum and dry vermouth as the base, orange curaçao as the sweetening modifier, and a small measure of grenadine that adds colour, a faint pomegranate depth and a sweetness rounding the drier components. The result is spirit-forward and elegant rather than tropical, and one of the most underappreciated drinks in the classical canon. The dry vermouth determines the quality of the finished glass more than anything else. At this volume alongside the rum, a stale bottle defines the drink for the wrong reasons before the rum can make its case.
Where this one sits
Recipe by Jerry Can Spirits