Classic cocktail · Guided recipe

Affinity

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A Scotch “perfect” Rob Roy: whisky split evenly between sweet and dry vermouth, with a dash of bitters. Smoky, round and balanced.

Preparation~2 minEasyStrengthStrongabout 27% ABVMethodShaken8 guided stepsIngredients4Coupe or martini glass
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In the glassScotch whisky · Dry vermouth · Sweet vermouth · Angostura bitters

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Affinity in a clear shallow coupe styled in a private library bar with deep olive leather, natural creases, off-centre seams and aged walnut.
Make it with guidanceOne clear action at a time, with timers built in.

What goes in

Ingredients

An empty clear coupe glass with a shallow rounded bowl and slender stem.
Serving glassCoupe glass

Set up before you pour

Use a coupe glass.

The stem keeps your hand away from a cold drink, while the rounded bowl makes an up serve easy to sip.

Standard size
200 ml oz
Ice & serve
Chill it first; serve without ice.
If you don’t own one
Use a small martini glass or stemmed dessert glass.
Tools to set out
  • cocktail shaker
  • strainer (or a small sieve)
  • jigger or measuring spoon
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Scale to your coupe or martini glassWe’ll remember this glass size.
  • Scotch whisky30 ml
  • Dry vermouth22 ml
  • Sweet vermouth22 ml
  • Angostura bitters2 dashes

From bottle to glass

Method

  1. 01
    Instructional sketch: Measure and pour spirit whiskey into the shaker tin without serving ice.
    Measure into the shaker

    Pour 30 ml scotch whisky into your shaker

    • Scotch whisky
  2. 02
    Instructional sketch: Measure and pour liqueur orange into the shaker tin without serving ice.
    Measure into the shaker

    Add 22 ml dry vermouth

    • Dry vermouth
  3. 03
    Instructional sketch: Measure and pour liqueur orange into the shaker tin without serving ice.
    Measure into the shaker

    Add 22 ml sweet vermouth

    • Sweet vermouth
  4. 04
    Instructional sketch: Measure and pour pantry bitters into the shaker tin without serving ice.
    Measure into the shaker

    Add 2 dashes Angostura

    • Angostura bitters
  5. 05
    Instructional sketch: Add cubed ice to the shaker tin.
    Ice the shaker

    Fill the shaker with ice

  6. 06
    Instructional sketch: Seal the two-piece shaker and shake it firmly with both hands.
    Seal and shake

    Seal and shake hard

  7. 07
    Instructional sketch: Strain the orange cocktail from the shaker into the coupe glass without serving ice.
    Strain cleanly

    Strain into a chilled glass — no ice

  8. 08
    Instructional sketch: Finish the orange drink in the coupe glass without serving ice with Cherry.
    Finish the drink

    Finish it — add a cocktail cherry

Know your drink

About the Affinity

An Old Fashioned, Whiskey Sour and sparkling whiskey highball in a warm library bar.

What 'perfect' means here

Bartenders call a drink 'perfect' when the vermouth is split half sweet, half dry. It is shorthand about the build and has nothing to do with quality. Affinity is a perfect Rob Roy under a different name, which tells you roughly what to expect: cereal and light smoke from the Scotch, wine sweetness on one side, a dry herbal snap on the other.

Two dashes of Angostura do more work here than in most Scotch drinks. Whisky and vermouth share a lot of soft, rounded flavors, and without bitters the middle of the drink goes vague and sweetish. Clove and gentian are what give it definition. Three dashes if your blend is a gentle one.

Common questions

Affinity FAQ

Does a peated Islay malt work in this?

It takes the drink over. Smoke sits on top of vermouth instead of blending into it, so a Laphroaig version tastes like two separate drinks in one glass. Blended Scotch is the traditional pour and the safest. For malt character without the bonfire, use an unpeated Speyside.

I only have one vermouth. What have I made?

Sweet alone gives you a Rob Roy. Dry alone gives you a Dry Rob Roy, which is austere and leans on the bitters much harder. Splitting them is the entire point here: sweet brings fruit and body, dry brings acidity and herbs, and between them the whisky's edges come off.

Is it meant to be this whisky-light at 30 ml?

That's the build as written, and it makes a mild drink. Thirty milliliters of Scotch under 44 ml of vermouth sits closer to an aperitif than to a Manhattan. If you want the whisky leading, go 45 ml Scotch with 22 ml of each vermouth and leave the bitters alone.

Cherry or a twist?

A cherry echoes the sweet vermouth and is traditional. A lemon twist does the opposite job, cutting the wine and pushing the drink drier, which suits a lighter blend. Use a proper brandied cherry if you use one; the neon supermarket kind bleeds dye and tastes of very little.

What ingredients are in an Affinity?

A classic Affinity calls for 30 ml (1 oz) Scotch whisky, 22 ml (0.75 oz) Dry vermouth, 22 ml (0.75 oz) Sweet vermouth, 2 dashes Angostura Angostura bitters. That single-serve spec scales cleanly — the recipe above converts it to oz and multiplies it for 2–4 drinks.

How strong is an Affinity?

A standard Affinity is roughly 27% ABV once mixed (before ice melt softens it further). That makes it spirit-forward — closer to a Martini than to a beer, so sip it slowly.

Is an Affinity shaken or stirred?

An Affinity is shaken. About 13 seconds with plenty of ice chills and dilutes it correctly.