Elevate your dessert game with this luscious Rum Buttercream Frosting—a rich, creamy topping that blends indulgent dark rum with velvety butter and a whisper of vanilla. Perfect for cakes, cupcakes, or cookies, this frosting strikes the ideal balance between sweetness and sophistication. Made with just six simple ingredients, including a pinch of optional salt to enhance flavor, this recipe comes together in just 15 minutes. The subtle warmth of dark rum pairs beautifully with the creamy base, making it a show-stopping addition to holiday treats or any special occasion. Whip it up fresh or prepare ahead and store for later—either way, this decadent rum buttercream will turn any dessert into a masterpiece.
In a large mixing bowl, beat the unsalted butter on medium speed using a hand or stand mixer until light and fluffy, about 3-4 minutes.
Gradually add the powdered sugar, about 120 grams (1 cup) at a time, beating on low speed until fully incorporated. Scrape down the sides of the bowl as needed.
Once all the powdered sugar is added, increase the mixer speed to medium-high and beat for another 2 minutes to ensure the mixture is smooth and fluffy.
Add the heavy cream, dark rum, and vanilla extract to the bowl. Beat on low speed until the liquids are fully incorporated, then increase the speed to medium-high and whip for another 2-3 minutes.
Taste the frosting and, if needed, add a pinch of salt to balance the sweetness. Beat for a few seconds to combine.
Use the frosting immediately to decorate cakes, cupcakes, or cookies, or store it in an airtight container in the refrigerator for up to 5 days. Allow it to come to room temperature and re-whip before using.
Serving size | 771.1 grams (771.1g) |
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Amount per serving | % Daily Value* |
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Calories | 3701 |
Total Fat 204.60g | 262% |
Saturated Fat 119.50g | 598% |
Cholesterol 533mg | 178% |
Sodium 187mg | 8% |
Total Carbohydrate 480.40g | 175% |
Dietary Fiber 0.00g | 0% |
Total Sugars 479.60g | |
Protein 1.60g | 3% |
Vitamin D 0IU | 0% |
Calcium 54mg | 4% |
Iron 0mg | 0% |
Potassium 67mg | 1% |
Source of Calories