marshmallow buttercream frosting recipeThis year Easter and my son’s birthday fell within a day of each other.  We had the best weekend ever.  We went to church on Saturday night because I was being confirmed, and a benefit of attending Easter Vigil Mass is not having to go to Mass on Easter Sunday.  We slept late, had a leisurely brunch, and stayed in our pj’s all day.  We watched movies, cuddled, and spent the holiday just being the 5 of us.  The next day was Clay’s 3rd birthday, and we did a lot of the same to celebrate.  We skipped having a birthday party and instead went out to lunch and spent the day playing.  It was a refreshing change to have a simple holiday and spend our littlest boy’s birthday at home, instead of cooking for days, and not really being able to relax and enjoy what is going on around me.  We might have to make it a new family tradition.

I have a crazy love affair with Marshmallow Fluff.  I know, I know.  It is terrible for me, but I love it just the same.  I think that I love it so much because my mom would never let us have it in our house growing up.  What ever the reason, I had a ton of it in my pantry from the holidays (fudge that never happened) and needed to get rid of it before the movers get here.  This marshmallow buttercream frosting is really light and fluffy and perfect for this simple birthday cake.  I fancied mine up at the last minute and added the seeds from one vanilla bean.  But vanilla extract alone is just fine.

marshmallow buttercream frosting recipe1 cup room temperature butter
1 (7-ounce) jar marshmallow creme
2 cups confectioners sugar
1 teaspoon vanilla
1 vanilla bean (optional)

marshmallow buttercream frosting recipeCream the butter until it is light and fluffy.  Add the marshmallow creme.

marshmallow buttercream frosting recipeWhip for 2 minutes.

marshmallow buttercream frosting recipeAdd the confectioners sugar and continue to beat for 2 minutes.  Add vanilla extract and vanilla bean.

marshmallow buttercream frosting recipeI used a simple yellow cake and baked it in a 10-inch pan and a small number 3 pan that I bought at a bakery supply store. Iced it with the marshmallow buttercream and covered it with M&Ms.

marshmallow buttercream frosting recipeI got the M&M idea from Martha, but mine did not turn out as neat as Martha’s.  Shocked are you?  Even though mine was not as precise as Martha’s, it was still really cute and all that matters is that the birthday boy loved it.

marshmallow buttercream frosting recipeHappy Birthday Clay!

marshmallow buttercream frosting recipeMy cake.  Not sharing.

marshmallow buttercream frosting recipe

Oh alright.  You can have some too.

Marshmallow Buttercream Frosting


  • 1 cup room temperature butter
  • 1 (7-ounce) jar marshmallow creme
  • 2 cups confectioners sugar
  • 1 teaspoon vanilla
  • 1 vanilla bean (optional)


  1. Cream the butter until it is light and fluffy. Add the marshmallow creme.
  2. Whip for 2 minutes.
  3. Add the confectioners sugar and continue to beat for 2 minutes. Add vanilla extract and vanilla bean.

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155 Responses to Marshmallow Buttercream Frosting

  1. omigoodness! He is so cute! Congrats!! And I just so happen to be in LOVE with marshmallow buttercream 😉

  2. Toni says:

    Sounds like your son and I share the same birthday! That sounds like a lovely way to spend the day! And I am completely stealing that cake idea for my middle son’s 3rd birthday which will be this New Year’s Eve. Love it.

  3. Melody says:

    This is amazing! So simple and clean but I’m sure it’s delish!

  4. This looks scrumptious! I love the m & m’s as the decoration. Simple but so cute.

  5. Ali says:

    What a fun and bright cake. I Love the m&m topper. Also, I am digging the frosting that incorporates marshmallow fluff. :)

  6. Michelle P. says:

    That looks incredibly good!!!!

  7. Karin van D. says:

    Very colourful and fun. Happy belated birthday Clay!

  8. oh! that looks delish, but i adore your little boy’s face, like, “mine! not sharing (but boy, does this cake make me happy).”

  9. LOVING this cake, and will bookmark it for my daughter’s upcoming 3rd birthday!

  10. Yours is totally gorgeous! What are you talking about…we love it. And we LOVE fluff! So we’re definitely going to have to try this recipe…

  11. Marie says:

    I LOVE fluff too!! Who doesn’t?? My aunt makes a fruit dip with it, but so far is unwilling to share that recipe! Super cute cake…makes me think that this is what I should do for my youngest son’s 2nd bday!!

  12. Evelyn says:


    Wish we could get Marshmallow Fluff in Australia – my soon to be 5 year would have loved the frosting!!

  13. I know the happiness that is marshmallow buttercream frosting. It may just be the most perfect thing ever created.

  14. Wow! Super cute cake!! And happy birthday, Clay^^

  15. Great idea to celebrate of Easter and B’day , I hope this dish will so sweet and every son will like if mother will make on special occasion .

  16. karin says:

    Love this cake idea! and the fluff too. This is giving me some good ideas for when my little guy turns 3 this year. Thanks!

  17. Lori says:

    Yum! I think I have a new idea for my kids’ birthday cakes this year!
    And it is every bit as lovely as Martha’s!

  18. christine says:

    I am drooling. wish i had that in my house, it would gone in under a minute. thanks so much for sharing. your little man is so adorable! can’t blame him for not sharing.

  19. Cute cake! This frosting sounds delicious.

  20. This is a gorgeous cake! I tried to make a cake from scratch a few years ago for my dad’s birthday… The cake was dry and the buttercream frosting was slick – like coat-your-tongue and wish-I-hadn’t-put-that-in-my-mouth slick. I was scarred from that experience and haven’t made a cake since. But seeing your adorable cake and your heavenly sounding frosting recipe, maybe I’ll give it another go. My dad’s birthday is only two weeks away. 😉

  21. Kim says:

    This is my first blog post – just started my own actually. This is a darling cake – and I love “fluff” frosting. I am hoping that maybe this might hold up a little better on my cupcakes? Am having a terrible time finding a frosting that holds a decent shape using my decorator tips. Will give this a try!

    • bakedbree says:

      I hope this works for you, try adding more powdered sugar to the recipe that you are using, it will firm up your frosting.

  22. Stephanie says:

    Your cake looks so amazing!! well done,
    thank you for your recipe- i am from South africa and can’t get marshmellow creame here… do you know of any substitutes?


  23. Liz says:

    Thanks for sharing! Used it to fill chocolate chip whoopie pies for my sons first birthday. Was delicious!

  24. SamCyn says:

    Hi Bree,

    Love the M&Ms on the cake! Do you think this type of frosting would do well on an ice-cream cake?


  25. Trish says:

    Just wondering, we can’t get marshmallow creme where I live, so what could I use as a substitute? Thank you

  26. Kelley says:

    Super cute cake and delish frosting!! Thanks:)

  27. Bella says:

    Would I be able to use melted marshmallows instead of the creme? I have an over abundance of bagged Marshmallows.

  28. Mallika says:

    Does this taste like whipped cream? Getting whipped cream in the place where we live is an ardent task. I would love to try this one instead. Great idea.

    Wouldn’t this be tad too sweet? Marshmallow fluff is too sweet for my tooth, on adding more sugar wouldn’t this turn out too too sweet? Just wondering!

  29. alie says:

    so i made your buttercream for my cupcakes i always end up running out of frosting how many servings would you say that the buttercream is

  30. Nicole says:

    Does this have a distinct marshmallow flavor? I’m looking for a marshmallow frosting recipe for some Smore’s cupcakes, so I want to be sure that you can taste the marshmallow! Thanks!

  31. Dina says:

    Hi I am making s’mores cupcakes for my cubscouts today and I using your marshmallow frosting, looks wonderful!

  32. Julia says:

    I love this! I can’t wait to have a reason to make a cake (or some cupcakes even) to test out this frosting! By this, I might mean that I need to HURRY UP and get dinner all set and move on to making dessert!
    I was born and raised in the town over from where Fluff originated (they still sell “what the fluff” shirts all over the place…. and have a festival…) and have never done more than mostly avoid it because my mum was a health nut and I have very little experience with the stuff. Now that I’m all “grow’d up” I think it’s about time to tackle baking with fluff!
    Thanks for sharing!

  33. Pattypro says:

    I’m not a big fan of buttercream, but I’m obsessed with Fluff, so I’ll give this a try. (I would have starved in childhood if not for Fluffernutters!)

  34. Dena says:

    I am just curious about your butter quantity. Your picture shows 1/2 cup, but the recipe calls for 1 cup. I am looking at several different marshmallow creme frosting recipes and most call for 1/2 a cup. So, I just wanted to clarify how much you use.

    Thank you!

  35. Adrian says:

    can’t wait to try this frosting out this weekend on my brownies!!!!
    this recipe just might be what i need for a cook off coming up in a few weeks….

  36. Tricia says:

    Can this frosting be used for piping?

  37. Dear Bree,

    Your cake is beautiful and your little boy is just precious!!! I am a big fan of yours. I would love to use something like this frosting for a sweet potato pound cake but am wondering how to adapt the recipe to make it more of a glaze. Do you have any suggestions? Or, if I made marshmallow frosting from scratch (using egg whites, etc instead of marshmallow creme), do you know how well it would hold up if I didn’t serve it immediately?

    Thank you!
    Carol Hanshew

    • bakedbree says:

      Add less sugar, or just thin out a jar of marshmallow cream with cream. I really don’t know how long it would last, probably a day?

  38. Sonja says:

    I made your marshmallow frosting today for cupcakes I took to our children’s Christmas party at church. They were a hit! The parents especially enjoyed the frosting … A good change from regular buttercream. Thanks for sharing :)

  39. That cake is adorable! I love the M&M idea, and the marshmallow buttercream looks easy and delicious. Thanks for sharing!

  40. Ellie says:

    How much frosting do you get with this recipe?

  41. Stephanie says:

    Love fluff too, I’m planning on making your funfetti cake with this frosting as you did but I would like to use the vanilla bean version, I have never used vanilla bean. How do I prepare the vanilla bean for the frosting?

  42. Jenn says:

    I have a few questions. Does this icing turn out white or more of an off-white because of the butter? We are throwing a winter themed 1st birthday in a couple weeks. So I was hoping it is white. I am actually making 2 cakes plus some cupcakes. How much icing would I need? The baby’s cake is one of those giant cupcakes. I plan on piping the rose technique on the top, with only a little on the sides because I am making a chocolate “liner”. The other is a 14″ round…Most likely just iced plain with a little trim. Would one batch of the icing be enough for each cake do you think? Can’t wait to try this recipe!! Thanks so much.

    • bakedbree says:

      It pretty white, but if you want super white, add white food coloring. You get about 4 cups of frosting per batch. The rest of the math you will have to do yourself. :)

      • Jenn says:

        Thanks so much for responding. :) If you say it’s white then that should be good…I just didn’t want a yellow tint, know what I mean. It’s hard for me to visualize how much 4 cups would cover. lol But hopefully 2 batches will be enough to cover both cakes. Just curious…how big was the cake you have pictured above? And did you use only 1 batch to ice it? Thanks.

  43. Madhuri says:

    Hi Breed,
    i am a very beginner for baking. i like to try this marshmallow buttercream. can we make marshmallow cream at home? and if you know how it is pls guide me.

  44. Barbra says:

    This looks so fluffy and delicious. I think I will frost my daughter’s birthday cake with this instead of regular buttercream. Thanks for the recipe!

  45. megan says:

    This frosting is great! I just made it to frost pink lemonade cupcakes for a birthday and everyone loved it!! Thanks for sharing your recipes!

  46. Jenn says:

    I finally got a chance to try out this icing and it was awesome!! I ended up not making it for my daughter’s birthday in february. But we made some Easter cupcakes last weekend and it was perfect for the pudding filled chocolate fudge cupcakes!! I was afraid it would be too sweet, but nope…just right! Thanks so much for the great recipe!

  47. Julie says:

    I know this is an older post and I have combed through the comments with the search feature but didn’t see an answer to this question. The post talks about Marshmallow Fluff but the ingredients use Marshmallow Creme. Will it make a difference to the recipe if I use Fluff and not Creme? Being from Massachusetts, where Fluff originated, I’ve only ever used Fluff in recipes, not the Creme, but am willing to try the creme for a change if you think the recipe would suffer. :)

  48. Rommy Coleman says:

    Hello! real quick question! Im in the process of making this as I type, and I realized, i have no idea which mixer head to use! The standard paddle one? or the one specifically for whipping? Thanks for your help!

  49. Jennifer says:

    I had the same question about the mixer head. I’m getting ready to make it for my son’s birthday and i want to make sure it comes out right, paddle or whisk??? Thanks!!!

    • bakedbree says:

      I used the paddle, you can see it in the pictures.

    • jamie says:

      I made it and it turned out wonderful. It was a little shiny looking but it hardened nicely. I may have added more powdered sugar tho. I just kept adding sugar until the consistency was how I wanted it.

      The funfetti cake was what I was most impressed with! The frosting and cake were a wonderful combo. No box cake ever again!

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