Rum Spumoni Recipe

We used golden rum to switch up the cult classic recipe from the Japanese bar scene.
Rum Spumoni recipe




Hi Ball



What is the Rum Spumoni cocktail recipe?

Spumoni is a popular drink Japan where it’s usually served as a low alcohol cocktail.

The original is made with grapefruit juice, tonic water, and a small amount of Campari.

It’s a drink full of citrus thanks to the grapefruit, with the tonic and Campari adding a bittersweet note.

In other words, it makes for the perfect early-evening cocktail.

Our version featured in our June 2022 cocktail discovery box along with the Southern Ice Tea recipe.

We took inspiration from bartender Jon Mullen from the USA who took the original Spumoni recipe and added gin.

However, we thought an aged golden rum would bring a nice element of flavour to complement the grapefruit and tonic.

We picked Rosemullion Distillery’s Golden Rum from Cornwall.

Carefully oak-aged, it has a smooth flavour perfect for sipping.

On the nose it’s tropical, with hints of slightly overripe tropical fruit, along with floral flavours and a lovely citrus lemon and lime aroma.

How to make the Rum Spumoni cocktail recipe


35ml Rosemullion Distillery Gold Rum

100ml Tonic Water

35ml Grapefruit Juice

15ml Campari


First, take a hi ball glass and pour in 35ml of grapefruit juice.

Next, add your Campari and 35ml of Rosemullion Distillery Gold Rum.

Add cubed ice to the glass and top with tonic water.

Finally, stir briefly to combine the mix.


Grapefruit Slice

What to try next?

Coconut Daiquiri recipe in a hi ball glass

If you’re into cocktails, chances are you’ve sampled a Daiquiri before.

If you have, then try our house Daiquiri made with Kaffir Lime and Coconut.

Then, try one of the most famous rum cocktails: Zombie cocktail.

Discover new cocktails

A woman prepares cocktail ingredients from The Cocktail Society's cocktail discovery box

Our Rum Spumoni recipe was the hero of our June 2022 cocktail box.

For people who love cocktails as much as we do, but want to take the hassle out of finding recipes and sourcing ingredients, our monthly box sends you everything you need to recreate your favourite cocktail bar in your own home.

As well as ingredients and instructions you’ll also receive a bottled cocktail, snacks, ready-to-drink canned cocktails, and discounts for brands like Rosemullion Distillery.

Membership is flexible, so you can pause any time.

Find out how our subscription works