Rum Daisy

Name: Rum Daisy Cocktail Recipe
Prep time: 5 min
Total time: 5 min
Yield: 4 servings
Ingredients: 1/2 Juice of a Lemon; 1/2 tsp Powdered Sugar; 1 tsp Raspberry Syrup or Grenadine; 2 oz Old Mr. Boston Imported Rum

Jump to ingredients

The Rum Daisy is a tart-sweet vintage cocktail built on aged rum, fresh lemon juice, and raspberry syrup, balancing bright citrus with subtle fruit complexity. Its simplicity makes it an ideal base for exploring spirit and syrup variations.

Ingredients

Check what you already have. We'll leave it off your shopping list.

1/2 Juice of a Lemon
1/2 tsp Powdered Sugar
1 tsp Raspberry Syrup or Grenadine
2 oz Old Mr. Boston Imported Rum

4 Ingredients

CookOS may earn a commission from Instacart orders.

Powered by Instacart

Prices vary by store

^*Service fees apply. Instacart^® and the Instacart logo are registered trademarks of Maplebear Inc. d/b/a Instacart.

Instructions

1
Shake well with cracked ice and strain into Stein or 8 oz.
2
Add cube of ice and decorate with fruit.

Was this recipe helpful?

Tips & Notes

Pro tips

Fresh-squeezed lemon juice is essential—bottled juice dulls the bright citrus note that defines the drink.
Chill your glass before serving to keep the cocktail cold longer and improve mouthfeel.
Adjust powdered sugar to taste; some prefer a touch more sweetness to balance tart lemon.

Substitutions

Grenadine → Raspberry Syrup (both are listed in the original; use whichever you have on hand for similar flavor and color)
Old Mr. Boston Rum → any aged or gold rum (maintains the classic profile; avoid white rum, which tastes thinner)
Fresh lemon juice → lime juice (shifts the flavor to a rum daiquiri style; use same quantity)

Storage & make-ahead

Cocktails are best consumed immediately after mixing; store any leftover syrup in a sealed bottle at room temperature for up to one month.

Equipment

cocktail shaker · bar spoon or jigger for measuring

Common Questions

What is the difference between a Daisy and a Sour cocktail?

A Daisy includes a liqueur or syrup (in this case raspberry syrup or grenadine) and optional soda, while a Sour uses only citrus and sweetener with the base spirit.

Can you make a Rum Daisy without raspberry syrup?

Yes. Grenadine works as a direct substitute and is listed in the recipe. Alternatively, try orgeat, crème de cassis, or simple syrup with a dash of bitters for variation.