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Marshmallow Buttercream Frosting

🎂🧁🍰 A five-minute decadent frosting recipe made with just five ingredients! Rich, sweet, smooth, perfect for piping or just spreading on your favorite cake, cupcakes, brownies, and more! So EASY yet so good!

Prep Time
5 mins
Total Time
5 mins
Servings: 4 cups
Calories: 1094 kcal
Course: Others

Ingredients

  • 7 cups confectioners' sugar*
  • 4 sticks 2 cups unsalted butter, room temp
  • 3 cups Marshmallow Fluff or Marshmallow Creme
  • 3 teaspoons vanilla extract
  • ¼ teaspoon fine salt or to taste

Instructions

    Cup of Yum
  1. To the bowl of a stand mixer fitted with either the paddle or whisk attachment (or a handheld electric mixer**) add all the ingredients, begin mixing on low speed until the confectioners' sugar starts to combine.
  2. After about 1 minute of mixing, turn speed up to medium for 30 seconds and mix before turning it up tohigh.
  3. Allow the buttercream to mix on high speed for another 4 minutes.***
  4. After it's done whipping up, use to frost cake, cupcakes, brownies, etc. by either piping it, dolloping it on, or spreading it. Frosting may be stored airtight in the fridge for up to 1 month.

Notes

  • *If your confectioners' sugar is on the lumpy side, I recommend sifting it to ensure a smoother final result.
  • **While a stand mixer is not essential, if you have one now is the time to use it. If not, use a handheld electric mixer noting you may have to whip the frosting a bit longer than the indicated times.
  • ***The marshmallow buttercream will come together long before the 4 minutes I call to beat the frosting in the recipe. However, I advise you to continue mixing because it allows the confectioners’ sugar to melt into the butter. Additionally, it allows air to be whipped into the frosting which gives it a better consistency due to enhanced volume, making it more ideal for piping or frosting.
  • ****The nutrition info is for the ENTIRE BATCH of frosting.

Nutrition Information

Serving 4cups Calories 1094kcal (55%) Carbohydrates 252g (84%) Protein 1g (2%) Fat 12g (18%) Saturated Fat 7g (35%) Polyunsaturated Fat 4g Cholesterol 31mg (10%) Sodium 286mg (12%) Sugar 231g (462%)

Nutrition Facts

Serving: 4cups

Amount Per Serving

Calories 1094

% Daily Value*

Serving 4cups
Calories 1094kcal 55%
Carbohydrates 252g 84%
Protein 1g 2%
Fat 12g 18%
Saturated Fat 7g 35%
Polyunsaturated Fat 4g 24%
Cholesterol 31mg 10%
Sodium 286mg 12%
Sugar 231g 462%

* Percent Daily Values are based on a 2,000 calorie diet.