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Slightly Pretentious

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The Dockside: A Killer Rum Old Fashioned Cocktail

February 13, 2025 by Sean Leave a Comment

Dockside Rum Old Fashioned Cocktail
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I don’t know the precise moment when it happened, but it definitely happened:

I became a rum guy.

These days rum gets a lot of love in cocktail circles, but I feel like for the average person (or at least the ones I’m around), rum as yet to get the attention it deserves.

So many people I come across still think a daiquiri is blended with sickly-sweet, sugary, “strawberry” mix, and that the only time you actually drink rum is poolside in Cabo.

The reality is (or at least my reality) is that rum is one of the most versatile spirits out there, in part because rums can be so different from one another.

Check out: My Rum Negroni Recipe for a great example of how versatile rum can be.

Let’s be real, for the most part? Vodka is vodka.

For the average person, gin is gin and tequila is divided into two categories: tequila you can take a shot of (Don Julio) and tequila that is only good for blending margaritas with (Jose Cuervo).

Whiskey obviously has a ton of variety, but I’d argue that the differences between each are less pronounced than the difference between different types of rums.

I mean put a light rum like Bacardi Superior, or an even better one like Plantation white rum, up against a Smith and Cross? It’s absolutely night and day different.

Or what about a Martinique rhum?

Or dark blackstrap rum?

Huge differences.

And it’s these differences that have me head over heels for rum these days.

Not only are they unique, but they’re versatile as well – and that’s what leads us to today’s cocktail: a rum old-fashioned variation I’m in love with right now that I call the Dockside.

Dockside Rum Old Fashioned Cocktail

Why is This Rum Old Fashioned Called a Dockside?

So this particular drink is something I’ve been working on for a while, and it’s a marriage of a few different favorites from my quest to visit the top 100 bars in the world.

The first inspiration is from the Dead Rabbit.

You see, one of my favorite drinks of all time is called the Bankers Punch.

It’s one of those combinations that sounds super weird and you’d think “there’s no way this would ever work.”

As an example, the three main components of the drink are a blend of 3 rums, Red Breast Irish Whiskey, and port wine.

Yes, port wine.

And it’s unreal.

But the inspiration here comes from those rums.

You see back in the late 19th century there was a type of rum that is extinct today called London dockside rum.

Well, the geniuses at the Dead Rabbit decided to try and revive this long-dead spirt, by combining three rums that are available: Cruzan Blackstrap, Smith and Cross, and Banks 7.

They combine equal parts of each to create their nod to the London Dockside style of rum.

I used that as my starting point for this cocktail (hence the name, The Dockside).

Dockside Rum Old Fashioned Cocktail

I’ve had a lot of luck when combining equal parts of ingredients (like with this fantastic mezcal old fashioned) and I figured I’d give that a shot here, add a little bit of simple syrup, and see if it worked.

It didn’t taste horrible, but it was oddly bitter and too spirit-forward. I was going 3oz spirit to .5oz sweetener, and it needed to be closer to 2oz to .5oz.

So I made some notes and tabled it for a while.

A few weeks later, I was flipping through the NoMad Cocktail book. The NoMad Bar in NYC was one of my all time favorite bars before it closed, and had some equally inventive drinks as the Dead Rabbit.

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I was super intrigued by a spirit-forward, tiki-ish drink called the Mynah Bird.

I had all the ingredients except some Creme de Cacao and Bittermans Xocolatl Mole Bitters.

So I popped down to the liquor store, picked them up, and was treated to a delicious drink that really did have tiki flavors to it, despite not looking like it would based on the ingredients.

In the drink, they used just a little bit of creme de cacao that worked well with the rums and added a bit of earthy sweetness that tasted awesome.

And so that inspired me to try and work it into the Dockside.

How to Make a Rum Old Fashioned

And now the combination that finally worked?

Well, rather than going for the Dead Rabbit’s true Dockside rum I changed up the ratios and used 1oz Banks 7, and half an ounce each of the Smith and Cross and Blackstrap. Smith and Cross can overpower anything you put it in, so you have to be really careful with how you use it.

I still used .5 oz of demerara simple syrup, but to bump up the sweetness and bring out some of the rum flavors I added .25oz of the creme de cacao.

To finish it off we used the Bitterman’s Xocolatl Mole bitters that worked so well in the Mynah bird, but I also added two dashes of Dead Rabbit Orinoco bitters. The latter might be my favorite bitters in the world, and you can also find them in the Bankers Punch.

The result is a rum old-fashioned that’s super unique, and allows you to really taste each of the ingredients within the drink.

Tell me what you think. I absolutely love this drink and have made it 4 times in the last two days. It’s a little bit of an investment in the rums to do it, but once you have these rums there is so much you can create with them.

Update February 2025: I originally published this about 5 years ago. It continues to be one of my go to “house cocktails”. I make it a lot for people who like spirit forward drinks, but don’t think they like rum.

Rum Old Fashioned Cocktail

The Dockside: A Rum Old Fashioned Recipe

This rum old fashioned uses a blend of three unique rums to create an old fashioned that's truly unique.
Print Recipe
CourseDrinks
CuisineAmerican
Keywordsbanks 7, creme de cacao, cruzan blackstrap, Smith and Cross
GlassRocks
DifficultyEasy
Total Time5 minutes minutes
Servings1 Drink
Calories200kcal
Cost$4

Equipment

  • Mixing Glass
  • Hawthorne Strainer
  • Rocks Glass
  • Large Ice Cube Tray

Ingredients

  • 1 oz Banks 7 Rum
  • .5 oz Cruzan Blackstrap Rum
  • .5 oz Smith and Cross Jamaican Rum
  • .25 oz Creme de Cacao
  • .5 oz Demerara Simple Syrup
  • 2 Dashes Orinoco Bitters
  • 1 Dash Bittermans Mole Bitters

Instructions

  • Combine all ingredients into mixing glass
  • Add ice and stir until well chilled
  • Strain into rocks glass over large cube

Nutrition

Calories: 200kcal

Want another cool rum cocktail? Try our Tiki Old Fashioned next!

Filed Under: Cocktail Recipes Tagged With: old fashioned, rum

About Sean

Sean has spent the last decade teaching people how to build small businesses, playing golf, and sneaking into high class establishments where he probably doesn't belong. Slightly pretentious is a tongue in cheek description of his travels.

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