I adore the texture of this frosting.  It is truly one of the lightest and fluffiest buttercreams I have ever made! Four easy ingredients and a little mixing and you are ready for this dreamy, creamy Marshmallow Buttercream! For a classic buttercream recipe, try my American Buttercream Frosting.

The BEST Marshmallow Buttercream

Marshmallow Buttercream

This is one heckuva sweet frosting! Butter, sugar, almond extract, and marshmallow cream are all you need to make it… and those ingredients combined are absolutely sweet! Don’t be afraid by all that butter in there.  I know I was before I tried it!  But with the addition of the almond extract, it truly is delicious. Why almond extract? It truly is my secret ingredient in making frostings BETTER and absolutely lives up to its reputation in this recipe.

Neapolitan Spritz Cookies filled with Marshmallow Buttercream (Recipe from iambaker.net)

Uses for Marshmallow Buttercream 

This buttercream lends itself so well to all varieties of sandwich cookies.  Here is my Neapolitan Spritz Cookies, however, it would also be amazing with Peanut Butter Cookies or Chocolate Chip Cookies! I used half of the recipe for my Salted Caramel Brownie Marshmallow Hi-Hats, too.

And of course, its the perfect frosting for Cake.  This recipe works beautifully for one 2-layer cake, like this Perfect White Cake. It is also the perfect complement to my Ginger Sandwich Cookies!

Perfect Marshmallow Buttercream

5 from 3 votes

The BEST Marshmallow Buttercream

Prep Time 10 mins
Cook Time 10 mins
Total Time 20 mins
I adore the texture of this frosting. It is truly one of the lightest and fluffiest buttercreams I have ever made.



  • Cream butter in a mixing bowl with an electric mixer on medium until butter is light and fluffy. (Can also use a stand mixer with paddle attachment.) About 2 minutes.
  • Add in almond extract.
  • Gradually beat in confectioners' sugar, about a ½ cup at a time. Once all is added, mix on high for 2-3 minutes.
  • Once fully combined, gently fold the marshmallow creme into the frosting by hand. Can be used immediately or refrigerated until ready to use.

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Don’t miss this frosting in my Ginger Sandwich Cookies!

Marshmallow Frosting for Ginger Sandwich Cookies


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Meet Amanda Rettke

Amanda Rettke is the creator of I Am Baker, and the bestselling author of Surprise Inside Cakes: Amazing Cakes for Every Occasion – With a Little Something Extra Inside.Over the course of her 15+ year blogging adventure, she has been featured in and collaborated with the Food Network, New York Times, LA Times, Country Living Magazine, People Magazine, Epicurious, Brides, Romantic Homes, life:beautiful, Publishers Weekly, The Daily Mail, Star Tribune, The Globe and Mail, DailyCandy, YumSugar, The Knot, The Kitchn, and Parade, to name a few.

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