The Best Fluffy Buttercream Frosting

The Best Fluffy Buttercream Frosting, light as air and not too sweet!

Buttercream frosting is the perfect topping for cupcakes, cakes, and cookies. Or even just eating with a spoon!


Fluffy Buttercream Frosting

Buttercream Frosting

Happy Friday! So, I’m going to get right into this.

I’m in a lot of forums on facebook. Everything from Dalmatians to baking.

And, one thing I come across in the foodie forums are people asking for THE BEST buttercream frosting recipe. A lot.

I’ve seen the same complaints about these points on different occasions; sometimes it just comes out overly sweet. Other times it is too thick or even too runny.

BUT, I finally put together the best (to me and quite a few in the comments below, thanks guys!) recipe for the best fluffy buttercream frosting.

Take me to the recipe for Buttercream Frosting already!

Thank you so much for your eagerness to view my recipe.

If you would rather not hear my super helpful tips and tricks, FAQ, and my overall awesomeness and get straight to this delicious buttercream frosting recipe – you can very easily scroll all the way to the bottom of this post for the full printable FREE recipe! Bon appetit.


Fluffy Buttercream Frosting

After making this batch of buttercream frosting yesterday for a super yummy upcoming Margarita Cupcake post, I knew I had to share it, and quick!

It is SO fluffy, and light and airy and just… YUM.

I showed a photo to my Mom over text and she asked me if it was cool whip because it looked so fluffy but nope! Just the best buttercream ever made!

Fluffy Buttercream Frosting

It reminds me a lot of that whipped frosting you can get on cakes at the grocery store. Those are normally made with whipping cream but not this one.

This has traditional buttercream ingredients but I think what really sets it apart is the way you add everything into the mixing bowl.

Butter. Powdered Sugar. Vanilla. Milk and a pinch of salt… that’s it! Easy.

I really took my time to perfect this buttercream frosting recipe and I hope you enjoy it too!

Fluffy Buttercream Frosting

How to make buttercream frosting fluffy?

  • First, I sifted the powdered sugar so it was light as air. Then, whip the softened butter until smooth.
  • Add the powdered sugar just a spoonful at a time, making sure each batch is incorporated until adding the next. I really think this is what made this frosting stand out.

How to make buttercream frosting less sweet?

When baking it is very important to always use unsalted butter unless otherwise stated in a recipe. But, the addition of salt to recipes is what helps to counteract the sweetness.

So, use that unsalted butter for this recipe BUT, make sure to add in just a pinch of kosher salt. Not too sweet, not salty at all, just the perfect buttercream frosting!

Fluffy Buttercream Frosting

How to store buttercream frosting?

If you are not going to frost your cake, cupcakes, or cookies right away, place the buttercream frosting in an air-tight container. Place the container in the fridge until ready to use.

Warning though, since there is butter in the recipe, the frosting will harden up.

Let the frosting warm up a little and place it back into the stand mixer and whip until light and fluffy again. This will only take a minute or two.

Can buttercream be left at room temperature?

This is a great debate. Once you make and decorate with buttercream frosting for cupcakes or cakes, what do you do with them?

Do they need to be refrigerated or can they stay on the counter?

Even though buttercream icing has both butter and milk in it, it can stay at room temperature for two to three days according to the U.S. Food Safety and Inspection Services. It can stay out because of the high amount of sugar in the frosting.

Fluffy Buttercream Frosting

Can buttercream frosting be made ahead of time?

Yes! Like mentioned above, just place it in an airtight container in the fridge until ready to use.

How long does buttercream frosting last in the refrigerator?

Buttercream will last in the fridge for up to two weeks.

Can I freeze buttercream frosting?

Yes, when placed in an airtight container, the frosting will last in the freezer for up to three months.

Fluffy Buttercream Frosting

Looking for cupcake recipes to top with this buttercream icing recipe? Try some of these:

Fluffy Buttercream Frosting

Tools used to make Buttercream Frosting:

How to make homemade buttercream frosting from scratch:

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4.3 from 31 votes

The Best Fluffy Buttercream Frosting

The Best Fluffy Buttercream Frosting, light as air and not too sweet! Buttercream frosting is the perfect topping for cupcakes, cakes, and cookies.
Prep Time20 mins
Total Time20 mins
Course: Dessert
Cuisine: Traditional
Keyword: buttercream, buttercream frosting, frosting
Servings: 24 servings
Calories: 147kcal


  • 1 Cup unsalted butter, softened or 2 sticks
  • 4 cups powdered sugar sifted
  • pinch of salt
  • 1 tablespoon vanilla bean paste or clear vanilla extract* or extract flavor of your choice
  • 2 tablespoons milk


  • Place butter in the bowl of a stand mixer with paddle attachment. Mix on low speed until smooth and fluffy, about a minute.
  • Add the sifted powdered sugar a spoonful at a time over medium-low speed. Keep doing this until all of the sugar is added, scraping down the sides as necessary.
  • Add the salt and stir to combine, add in the vanilla and stir to combine. Add the milk and whip the frosting for 3-4 minutes until light and fluffy.



*Make sure to use clear vanilla if you want a pure white buttercream. Use vanilla bean paste if you love those little black flecks like I do!


Calories: 147kcal | Carbohydrates: 20g | Fat: 7g | Saturated Fat: 4g | Cholesterol: 20mg | Sodium: 68mg | Potassium: 3mg | Sugar: 19g | Vitamin A: 4.7% | Calcium: 0.4% | Iron: 0.1%
Tried this recipe?Follow me @danadevolk or tag #danadevolk!

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29 Comments at The Best Fluffy Buttercream Frosting

    1. Hi Vera, yes it can be made ahead of time. I wouldn’t make it more than 2 days in advance though. After refrigeration, you will most likely need to whip it again because in the fridge it will get super stiff from all the butter.

  1. I was a bit skeptical that it would be any better/different from my grandmother’s tried n’true….. but WOW!! Thanks for sharing! I 1/2’d the recipe and it was perfect for a 13×9 cake.

  2. Can this be used to layer cakes. I am doing my daughter’s first birthday cake and want a light raspberry butter cream filling. Will it hold the layers in place? How much raspberry syrup should I add?

    1. I wouldn’t recommend using this between layers, it would be good as the final frosting after the crumb coat though. If you want to flavor this like raspberry, I would use pure raspberry extract, that way it will not thin the frosting like a syrup would. Add just a teaspoon, taste, then add more to your preference.

  3. I’m not an avid baker so this might be a silly question. I did see that you said this frosting can be made in advance, and that if you store it in the fridge you’ll have to whip it again before using it, due to hardening from the butter. My question is, can I frost and decorate the cake (put writing on it) the night before and it be eaten the next day? I’m wondering if it will hold up and if the cake should be refrigerated. Thanks 🙂

  4. Hi…I cant wait to try it out…I wanna ask…the recipe says ‘1 Cup 2 sticks unsalted butter, softened’ Does this mean 1 cup and 2 sticks or is it 1 cup or 2 sticks?
    I wanna try it out this weekend. Please let me know.

  5. Can someone tell me will this frosting hold if you want to make your cupcake frosted like a beehive? Or is it too soft to do that?

  6. “This silly girl” sure did a Beautiful job of decorating the cake. I though at first that they were lots of roses, real roses!
    I gave you 5 stars for its beauty! Bet tastes 5 stars worth too.

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