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Loading...A beloved Costa Rican bar classic, this bright and silky cocktail showcases guaro, the country's signature sugarcane spirit. Shaken with fresh lime, a touch of sugar, and an egg white for a velvety foam, it's the perfect refresher on a warm tropical afternoon.
Prep Time10 mins
Cook Time5 mins
Total Time15 mins
Servings4
Yield4 cocktails
Nutrition Facts
Per serving (estimated)
- 215 kcalCalories
- 0 gFat
- 0 gSaturated Fat
- 15 gCarbs
- 0 gFiber
- 13 gSugar
- 2 gProtein
- 25 mgSodium
- 55 mgPotassium
- 6 mgCalcium
- 0 mgIron
- 9 mgVitamin C
- 0 mcgVitamin A
Ingredients
For the Simple Syrup
- 1/2 cup granulated sugar
- 1/2 cup water
For the Cocktails
- 8 oz (1 cup) guaro, chilled
- 4 oz (1/2 cup) fresh lime juice, strained
- 2 oz (1/4 cup) simple syrup
- 2 large egg whites
- 1 cup ice cubes
- 4 dashes Angostura bitters, for garnish
- 4 thin lime wheels, for garnish
Directions
- Make the simple syrup: combine the sugar and water in a small saucepan over medium heat, stirring until the sugar fully dissolves, about 3 minutes. Remove from heat and let cool to room temperature.
- Juice the limes and strain through a fine-mesh sieve to remove pulp and seeds; you need exactly 1/2 cup.
- In a large cocktail shaker, combine the guaro, fresh lime juice, cooled simple syrup, and egg whites.
- Dry shake (without ice) vigorously for 15 seconds to emulsify the egg white into a thick, silky foam.
- Add the ice cubes and shake again hard for 20 seconds until the shaker is frosty on the outside and the cocktail is well-chilled.
- Strain into four chilled coupe or Nick & Nora glasses, holding back the ice.
- Drop a few dashes of Angostura bitters on top of the foam in each glass and swirl gently with a toothpick for a marbled effect.
- Garnish each with a lime wheel and serve immediately while the foam is still glossy.
Cook’s Notes
- Always use fresh-squeezed lime juice; bottled juice will mute the bright citrus character and ruin the foam.
- The dry shake (without ice) is essential for a silky, long-lasting foam — do not skip it.
- For a vegan version, swap each egg white for 2 tablespoons of aquafaba (chickpea brine) with the same dry-shake technique.
- Guaro Cacique is the most widely available brand in Costa Rica; if you can't find it, substitute with a clean white rum or silver cachaça.
- Chill your serving glasses in the freezer for 10 minutes for the frostiest presentation and longest-lasting foam.
