# Rum Espresso Martini

> A coffee-forward twist on the classic Espresso Martini that swaps vodka for aged rum, adding warm caramel and spice notes to the sharp espresso and coffee liqueur. Bright crema, a pillowy foam top and a touch of sweetness make this an elegant after-dinner cocktail or party favorite.

Canonical URL: https://www.topshelf.recipes/recipes/rum-espresso-martini

## Author

Jake Woods

https://www.topshelf.recipes/chef/jake-woods

Published: June 25, 2026

Last Updated: September 24, 2026

## About This Recipe

The Rum Espresso Martini reimagines the sleek, caffeinated classic by swapping neutral vodka for a 5–8 year aged rum, folding in warm caramel, molasses, and oak that complement the espresso's bitter brightness. The cocktail's signature pillowy foam—created here with a dry shake of egg white (or aquafaba)—sits atop a concentrated coffee core, offering a velvet mouthfeel that contrasts with the espresso's acidic lift. Using a quality coffee liqueur and just enough simple syrup keeps the drink polished rather than syrupy.

This version shines as an after-dinner sipper or a centerpiece at a dinner party when you want something both familiar and a touch more grown-up; it's for people who love coffee-forward cocktails and appreciate rum's nuanced spice. To get the best balance, choose an aged rum that reads cleanly—vanilla, toffee, and cinnamon notes at the front—and brew a short, dark espresso shot so the cocktail retains bite. The method—dry shake to build foam, then a hard shake with ice—makes the texture as important as the flavor, so a little technique goes a long way.

## Recipe Information

- Prep Time: 8 minutes
- Total Time: 8 minutes
- Servings: 2
- Difficulty: Easy
- Category: Drinks

## Ingredients

### Brew and cool espresso

- 2 oz Freshly brewed espresso, cooled

### Combine ingredients and dry shake

- 4 oz Aged rum (gold or dark), preferably 5–8 years
- 2 oz Coffee liqueur (e.g., Kahlúa)
- 1 1/2 oz Simple syrup (1:1)
- 2 large egg whites Large egg whites (or aquafaba for vegan)

### Shake with ice until chilled

- 1 1/2 cups Ice

### Strain and garnish

- 6 whole beans Coffee beans for garnish

## Ingredient Guide

### Large egg whites (or aquafaba for vegan)

Aquafaba is the viscous liquid from cooked chickpeas (or other legumes) that became popular in vegan cooking as an egg-white substitute. It whips to a foam with a neutral-to-slightly-beany aroma and produces meringue-like foams useful in cocktails and baking. You can obtain it by saving the liquid from a can of chickpeas or by cooking dried chickpeas and reserving the cooking water; some specialty shops sell bottled aquafaba. If you prefer not to use aquafaba, use a large egg white as the direct substitute (about 2 tablespoons aquafaba ≈ 1 large egg white).

## Instructions

### 1. Brew and cool espresso

Pull two single shots (about 2 oz / 60 ml) of fresh espresso and set them aside to cool briefly — a hot shot will dilute the foam. If you need to speed cooling, place the espresso in a small metal container and set it in an ice bath for a minute, then dry it before using.

### 2. Combine ingredients and dry shake

Add the cooled espresso, aged rum, coffee liqueur, simple syrup and egg whites to a cocktail shaker (no ice yet). Seal and dry shake vigorously for 12–20 seconds to build a silky, stable foam.

### 3. Shake with ice until chilled

Add ice to the shaker and shake hard for another 12–18 seconds until the outside of the shaker is frosty and the mixture is well-chilled. This second shake chills and slightly dilutes the drink while intensifying the crema.

### 4. Strain and garnish

Double-strain into two chilled coupe or martini glasses to remove ice shards and achieve a smooth texture. Garnish each drink with three coffee beans on the foam (classic) and serve immediately.

## Nutrition

Estimated nutrition per serving (1 serving (approx. 342g)):

- Calories: 315 kcal
- Protein: 3.4 g
- Carbohydrates: 32.8 g
- Fat: 0.3 g
- Saturated Fat: 0.1 g
- Fiber: 0.1 g
- Sugar: 32.1 g
- Added Sugars: 31.9 g
- Cholesterol: 0 mg
- Sodium: 56.2 mg
- Potassium: 105.2 mg
- Calcium: 3.6 mg
- Iron: 0.1 mg
- Vitamin D: 0 mcg

## Tips

### Cool espresso quickly

Pour the shots into a small metal cup and rest it in an ice bath for 30–60 seconds, then dry the outside before adding to the shaker to avoid excess dilution.

### Dry shake first

Shaking without ice for 12–20 seconds emulsifies the egg white (or aquafaba) and creates a silky, stable foam that ice alone cannot produce.

### Use chilled glassware

Place your coupes in the freezer for a few minutes so the cold glass holds the crema and slows foam collapse once poured.

### Egg white safety

Use pasteurized eggs if you have concerns about raw egg whites, or substitute aquafaba; always discard any eggs showing off odors or discoloration.

### Adjust sweetness to taste

Taste the espresso and rum before assembling—if your espresso is very dark or the rum is sweet, reduce the simple syrup to prevent the cocktail from tasting cloying.

## Variations and Substitutions

### Vegan aquafaba version

Replace the two large egg whites with about 3 tablespoons of aquafaba and follow the same dry-then-wet shaking method for a foam-forward vegan cocktail.

### Spiced rum twist

Use a spiced rum instead of aged dark rum or grate a little fresh nutmeg on the foam to amplify warm spice notes and add aromatic complexity.

### Cold brew long-pull

Swap the espresso for 2 ounces of cold brew concentrate for a smoother, less acidic base; reduce simple syrup slightly if the concentrate is already sweet.

### Demerara syrup swap

Use a 1:1 demerara simple syrup in place of white sugar syrup to echo rum's caramel and molasses flavors and deepen the cocktail's backbone.

## Notes

This version highlights the rum's molasses and oak flavors to complement espresso rather than overpower it. It’s perfect for dinner guests or a cozy nightcap when you want a coffee-forward cocktail with character.

### Storage and Make-Ahead

This cocktail is best made and served immediately because the foam and crema collapse quickly. You can prepare a make-ahead base by mixing the rum, coffee liqueur, espresso and simple syrup and storing it sealed in the refrigerator for up to 24 hours; add egg white or aquafaba and perform the dry-and-wet shakes just before serving. Avoid reheating—this is a chilled cocktail and should not be warmed.

### Serving Suggestions

Serve the Rum Espresso Martini in chilled coupé or martini glasses alongside small bitter-sweet nibbles such as 70% dark chocolate squares, almond biscotti, or salted caramel bite-sized tarts. For a dinner party, offer a light palate cleanser like a slice of candied orange or a spritz of sparkling water between rounds to keep the coffee flavors lively.

## Frequently Asked Questions

### Can I use vodka instead of rum?

Yes—substituting vodka will produce a more classic espresso martini profile without the rum's caramel and spice notes; if you want to keep some warmth, choose a vanilla- or caramel-infused vodka.

### How do I make this without raw egg?

Use about 3 tablespoons of aquafaba (the liquid from canned chickpeas) in place of two egg whites and follow the same dry-then-wet shake technique; it creates a surprisingly similar foam and mouthfeel.

### Why do I dry shake before adding ice?

Dry shaking creates a stronger emulsion between the egg proteins and the liquids, producing a thicker, more stable foam than shaking with ice from the start.

### My foam fell apart — what went wrong?

Common causes are using hot espresso, under-shaken or old egg whites, or serving in a warm glass; cool the espresso, use fresh or pasteurized whites, dry shake thoroughly, and pour into chilled glassware immediately.

### Can I prepare any part ahead of time?

Yes, mix the espresso, rum, coffee liqueur and simple syrup and keep it refrigerated up to 24 hours; add the egg white or aquafaba and complete the shaking steps just before serving for best foam.

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