Imperial Fizz Cocktail Recipe | 3 Steps to Regal Bliss

A pale golden Imperial Fizz cocktail served in a tall glass with lime slices, set on a wooden table with greenery in the background

Want a whiskey cocktail with real depth but still refreshing? The Imperial Fizz cocktail is your answer — whiskey and rum shaken with lemon and sugar, topped with soda. Why try it: an elaborate twist on the classic highball, a documented 1930s pedigree, and a build that works with any whisky style. Below: the recipe, its true origin, tasting notes, and tips for a balanced pour.

Table of Contents

Recipe & Method

Ingredients

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Recipe no.090

  • Whiskey — 1 + 1/2 oz (45ml)
  • White rum — 1/2 oz (15ml)
  • Lemon juice — 2/3 oz (20ml)
  • Sugar — 2 tsp
  • Soda — Full
  • 1 tsp = one bar-spoon measure.
  • “Full” means filling the glass to roughly 80–90% capacity.

Recommended White Rum Brand

Method

A bartender in a burgundy vest shaking a cocktail shaker over her shoulder in a dimly lit bar
Step
Combine

Add the whiskey, white rum, lemon juice, and sugar to a shaker.

Step
Shake

Shake well, then pour into a glass along with fresh ice.

Step
Stir the soda in

Fill gently with soda so it doesn’t go flat, then stir slowly. When mixing in carbonated ingredients, one or two gentle rotations while raising and lowering the ice is enough to combine everything without losing the fizz.

・Technique | Shake & Stir
・Glass | Collins Glass / Tumbler Glass
・ABV | approx. 12%
・Best Enjoyed | Daytime / Before dinner
・Style | Fizz

Imperial Fizz in Detail

Characteristics and Flavor

A historical oil painting of Napoleon in ornate coronation robes and a laurel wreath crown, holding an imperial scepter

The name “Imperial” signals something grander than “Royal” — this is meant to read as the fizz to end all fizzes. Its precise origin isn’t settled, but the earliest recipe I could confirm appears in the 1930 Savoy Cocktail Book, calling for rum, Scotch or Canadian whisky, lemon, sugar, and soda in almost exactly this proportion.

Built on whiskey’s rich, aromatic character, the recipe layers in white rum’s punch, lemon’s bright acidity, and sugar’s gentle sweetness, all topped with soda. On paper, the ingredient list reads close to a whiskey highball, but rum, lemon, and sugar together push it into something sweeter, cleaner, and considerably more elaborate.

Poured into a clear glass, the drink sparkles with rising soda bubbles for a genuinely refreshing look. The first sip layers whiskey’s deep aroma with rum’s sweet notes, while lemon tightens the profile and sugar keeps everything balanced. Soda’s crispness finishes it off clean, making this a long drink that never grows tiresome. For a name this grand, it’s remarkably easy to drink — a historic cocktail worth trying across different whiskey styles, from Scotch to bourbon to Japanese whisky, to see how each one changes the character.

Points, Twists & Food Pairings

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Food & Snack Pairings

  1. Smoked almonds — Smoke and salt echo whiskey’s own depth, while the drink’s citrus cuts through the nuts’ oiliness cleanly.
  2. Grilled pineapple — Caramelized sweetness plays off rum’s tropical character, and the char adds a savory counterpoint to the drink’s fizz.
  3. Aged cheddar — The cheese’s sharp, nutty depth mirrors whiskey’s spice, and the drink’s acidity keeps the pairing from feeling heavy.

Bartender’s Tip

A common mistake is using granulated sugar straight from the shaker, which never fully dissolves and leaves a gritty texture. Use fine or superfine sugar, or dissolve it with the lemon juice first for a smoother, cleaner result.


Twists

  1. Smoky Imperial Fizz — Use a peated Scotch for a deeper, smokier backbone.
  2. Ginger Imperial Fizz — Swap soda for ginger ale for a spicier, warmer profile.
  3. Tropical Imperial Fizz — Use a dark rum instead of white for a richer, more molasses-forward twist.

I’d personally recommend the smoky version for whiskey drinkers who want the peat to actually come through — it turns this classic into something with real backbone.

Recipe Video

Imperial Fizz Cocktail

A rich Imperial Fizz cocktail made with whiskey, white rum, lemon juice, and sugar, topped with soda — a grand, historic fizz first documented in the 1930 Savoy Cocktail Book.

タイプ: Cocktail

料理: American

キーワード: imperial fizz cocktail, whiskey rum fizz cocktail, savoy cocktail book recipe, whiskey highball fizz recipe, classic fizz cocktail recipe

レシピー歩留まり: 1 drink

準備時間: 5 minutes

所要時間: 5 minutes

レシピー材料:

  • Whiskey — 1 + 1/2 oz (45ml)
  • White rum — 1/2 oz (15ml)
  • Lemon juice — 2/3 oz (20ml)
  • Sugar — 2 tsp
  • Soda — Full

レシピーの説明:

Combine:

  • Add the whiskey, white rum, lemon juice, and sugar to a shaker.

Shake:

  • Shake well, then pour into a glass along with fresh ice.

Stir the soda in:

  • Fill gently with soda so it doesn't go flat, then stir slowly. When mixing in carbonated ingredients, one or two gentle rotations while raising and lowering the ice is enough to combine everything without losing the fizz.

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