How to make a King Kong Old Fashioned: banana and rum-infused bourbon recipe

The King Kong cocktail blends bourbon, rich overproof pot-still rum and banana liqueur into a sophisticated twist on an Old Fashioned that rewards slow sipping. This layered, spirit-forward drink pairs deep oak and caramel from the whiskey with tropical, estery notes from rum and a gentle banana sweetness. Bartenders looking for a showstopper often choose this recipe for its balance and the theatrical lemon twist garnish. You will find the recipe straightforward and adaptable for home or bar service.

What exactly is the King Kong cocktail?

The King Kong is an Old Fashioned-style cocktail that swaps a simple sugar element for a touch of banana liqueur and a portion of high-ester aged rum. Its foundation rests on bourbon whiskey so the base remains familiar and approachable for fans of spirit-forward drinks. A few dashes of Angostura bitters round the profile and lift the aromatics.

This recipe is designed for sipping and fits the nightcap or after-dinner slot. It highlights how a small amount of flavorful liqueur and a bold rum can reshape a classic without masking the bourbon.

Which ingredients compose the authentic King Kong?

Below is a clear ingredient list for one serving that preserves Sam Ross’s original concept while keeping bar efficiency in mind. Quantities are given in millilitres for precision, with a single ounce conversions note in the tips section.

Ingredients per serving
Ingredient Measure
Bourbon whiskey 45 ml
Overproof aged pot still rum (high-ester, 4–6 years) 15 ml
Giffard Banane du Brésil or similar banana liqueur 15 ml
Angostura aromatic bitters 3 dashes

Common substitutions work but change the profile. Use a rich, caramel-forward bourbon rather than a light, floral one. Swap the banana liqueur only when you want less banana intensity.

  • For a drier result, reduce banana liqueur to 10 ml and increase bourbon by 5 ml.
  • For a milder rum influence, use aged rum at 40–43% rather than overproof.

How should you prepare and serve the King Kong?

Begin by selecting an Old Fashioned glass and chilling it briefly so the cocktail stays cool without over-dilution. Prepare a lemon peel for garnish and have a large ice cube or block ready for the serving glass.

Combine bourbon, overproof rum, banana liqueur and bitters in a mixing glass. Add ice and stir until properly chilled and slightly diluted which usually takes about 20 to 30 seconds depending on your ice.

Strain the mixture over fresh ice in the pre-chilled Old Fashioned glass. Express the lemon zest over the drink to release essential oils and then drop the twist into the glass as garnish. If vous are making multiple servings, multiply the ingredients and stir in a larger mixing vessel before portioning.

What does the King Kong taste like and how strong is it?

The cocktail opens with bourbon warmth and vanilla oak then reveals tropical banana and funky, ester-driven rum notes on the mid palate. Bitters add a complex herbal backbone that keeps the sweetness in check and gives the drink a slightly dry finish.

Alcohol and nutrition figures for one serving are as follows.

Alcohol and nutrition per serving
Item Value
Standard drinks 1.9
Alcohol by volume 34.65% alc./vol. (69.3° proof)
Pure alcohol 26.4 grams
Calories 206 kcal

Who created the King Kong and where did it originate?

The King Kong cocktail traces back to Sam Ross and his work at Attaboy in Manhattan. Ross first introduced variations of the drink around 2015 while experimenting with combining rums and liqueurs into a bourbon-forward template.

Bars and home enthusiasts embraced the recipe because it balances novelty with familiarity. The history highlights how a small twist on a classic formula can produce a signature drink with lasting appeal.

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