This 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.
1 cup room temperature butter
1 (7-ounce) jar marshmallow creme
2 cups confectioners sugar
1 teaspoon vanilla
1 vanilla bean (optional)
Cream the butter until it is light and fluffy. Add the marshmallow creme.
Whip for 2 minutes.
Add the confectioners sugar and continue to beat for 2 minutes. Add vanilla extract and vanilla bean.
I 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.
I 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.
Happy Birthday Clay!
My cake. Not sharing.

Oh alright. You can have some too.
Ingredients
- 1 cup room temperature butter
- 1 (7-ounce) jar marshmallow creme
- 2 cups confectioners sugar
- 1 teaspoon vanilla
- 1 vanilla bean (optional)
Instructions
- Cream the butter until it is light and fluffy. Add the marshmallow creme.
- Whip for 2 minutes.
- Add the confectioners sugar and continue to beat for 2 minutes. Add vanilla extract and vanilla bean.











{ 48 comments… read them below or add one }
omigoodness! He is so cute! Congrats!! And I just so happen to be in LOVE with marshmallow buttercream
Katrina @ In Katrina’s Kitchen recently posted..Chocolate Chip Cookie Cheesecake
thank you Katrina!
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.
Happy Birthday Toni!
This is amazing! So simple and clean but I’m sure it’s delish!
that is what I was going for, simple and clean. It tasted amazing too.
This looks scrumptious! I love the m & m’s as the decoration. Simple but so cute.
it is Kelley!
What a fun and bright cake. I Love the m&m topper. Also, I am digging the frosting that incorporates marshmallow fluff.
Ali recently posted..Blueberries with Brown Sugar Cream
thanks Ali. I love anything marshmallow.
That looks incredibly good!!!!
thank you Michelle.
Very colourful and fun. Happy belated birthday Clay!
Karin van D. recently posted..Fly On The Wall
thank you Karin!
oh! that looks delish, but i adore your little boy’s face, like, “mine! not sharing (but boy, does this cake make me happy).”
emily @ the happy home recently posted..DIY Mercury Glass
Thanks Emily! He eventually shared with us.
LOVING this cake, and will bookmark it for my daughter’s upcoming 3rd birthday!
melissa@IWasBornToCook recently posted..When I dip- you dip- we dip
thanks Melissa!
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…
thanks girls! I love the restaurant series you are doing! Love.
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!!
Fruit Dip sounds good. I have never understood people that do not share recipes. Why not?
Lovely!
Wish we could get Marshmallow Fluff in Australia – my soon to be 5 year would have loved the frosting!!
You cannot get Fluff in Australia????? Oh my.
I know the happiness that is marshmallow buttercream frosting. It may just be the most perfect thing ever created.
Pretty much. Fluff is heaven on Earth.
Wow! Super cute cake!! And happy birthday, Clay^^
thank you Katie!
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 .
thanks Rocky.
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!
Have fun! 3 is a lot of fun.
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!
awww, thank you!
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.
thank you, I think that he is pretty cute too.
Cute cake! This frosting sounds delicious.
Jenn@eatcakefordinner recently posted..Graham Cracker Smores Cookies
thank you Jenn!
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.
Emily (Roots+Platter) recently posted..Roasted Corn and Black Bean Salsa
I am glad that Clay’s cake inspired you to try again. Hope that it turns out better this time.
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!
I hope this works for you, try adding more powdered sugar to the recipe that you are using, it will firm up your frosting.
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?
thanks
s
Thank you Stephanie. I don’t know what else to use, I am so sorry!
Thanks for sharing! Used it to fill chocolate chip whoopie pies for my sons first birthday. Was delicious!
Yum. I bet that was a good combo.
Hi Bree,
Love the M&Ms on the cake! Do you think this type of frosting would do well on an ice-cream cake?
Thanks!
I would probably use a whipped cream instead of a buttercream. I am not sure how it would freeze.
{ 4 trackbacks }