Individual Funfetti Cakes with Marshmallow Fluff Buttercream

I made these cute, individual cakes for my two favorite little girls.

There is nothing better than little girl birthday parties. Tons of pink, glitter, dresses, twirling and presents filled with purple sparkly accessories.


My nieces have birthdays just a few days apart from each other which means joint birthday parties. And when you’re little, that can be hard since sharing the spotlight and gifts isn’t the most desirable way to celebrate a birthday when you’re a kid. But my sister-in-law does a great job of making their celebrations super special each year.  This year I tried to do my part by baking them each their own cake.

I loved making these pink, whimsey cakes for them. Plus, the marshmallow frosting is super easy and ridiculously delicious. Like, way better than regular buttercream. It is so sweet and fluffy and it was hilarious to watch my niece, Emma, dive into her cake at full speed.

Lucky for you, these cakes would be loved by anyone at any age. This was one of my favorite cakes I’ve made thus far (we all know funfetti is my favorite). The pink frosting and heart frosting could have been a factor in my love for the cake as well, I suppose. Either way I think I’m going to bake myself one of these cakes for Valentines Day!


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Here are a couple pictures of my beautiful nieces enjoying some cake. We didn’t have any regular birthday candles so we used giant taper candles instead, haha!

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Individual Funfetti Cake's with Marshmallow Fluff Buttercream

  • Difficulty: Easy
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Funfetti Cake Recipe Here


For the Frosting:

1/2 Stick Butter, Softened

1 Jar Marshmallow Fluff

1 Teaspoon Vanilla Extract

4-5 Cups Powdered Sugar (more or less to taste and desired consistency)

1-2 Tablespoons Milk


For the Cake:

For the cake, preheat oven and line a large jellyroll pan with parchment paper. Spray with non-stick baking spray (love Pam plus flour spray) . Once batter is ready, pour and spread evenly onto jellyroll pan. Bake until the center is no longer wet and a toothpick inserted into the center comes out clean. Let cool completely before cutting and frosting.

To make the small circular shapes, I placed a small bowl over the cake and cut out desired shapes. I then stacked them and cut them until they are even all the way around. I used a small enough bowl so I could cut 6 small circles out.

For the Frosting:

In the bowl of an electric mixer, beat butter until light an fluffy.

Add marshmallow and vanilla to butter and mix well.

Gradually add sugar, beating well after each addition so it is big and fluffy.

Add milk in small additions until you find a consistency or amount of frosting you want.

Add 3-4 drops red food coloring to get a pretty light pink color

To Assemble:

Once cakes are cut to desired shape, find similar shapes to use for the cakes. I stacked 2 layers of cake. To assemble, find a small plate and place bottom cake in the center of the plate. Take about 1/4-1/2 cup frosting and spread it around the top of the cake. Place the next cake on top.
I always make a “crumb layer” that doesn’t look too pretty but covers most of the cake. I then put that in the refrigerator to harden a bit before covering with another layer, making sure that second layer looks nice and is crumb free.

Once all the cakes are frosted, you can decorate them with fun sprinkles. Serve cakes at room temperature.


10 thoughts on “Individual Funfetti Cakes with Marshmallow Fluff Buttercream

  1. These are the sweetest cakes – those little heart sprinkles are so adorable, and I love how delicately you decorated them. Marshmallow buttercream? Could there possibly me a more magical cake frosting for a little girls’ birthday? Perfection!

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