Mini Vanilla Funfetti Cake

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Alexa play ‘Birthday’ by Katy Perry! Funfetti cakes reminds me of birthday celebrations and Katy Perry. If you have a summer birthday without a funfetti cake…you’re not doing birthdays right! Funfetti is such a fun vibe and the best pop of color added to any dessert. Even if it’s not your birthday, this mini vanilla funfetti cake is small enough to be an after-dinner treat to enjoy between friends or family! This recipe is for two 6 inch cakes, layered, and coated in a sweet vanilla buttercream!

Our favorite summer-style recipes:


  • Beat the butter first until it becomes fluffy, then add powdered sugar in small chunks. 
    • using softened butter is best
  • Use milk or heavy cream
    • heavy cream will help you get that thick, creamy texture, while milk will give you a fluffier texture. 
    • add your milk or cream slowly. you can always add more, but you can never take the milk out. 
  • Add strawberry extract (or any other flavored extract) 
    • this brings extra flavors and added sweetness to your buttercream
  • Cover the bowl with a towel while mixing
    • there are many times I’ve had powdered sugar flying everywhere when adding it to the mixer because it wasn’t covered
  • The spatula test! 
    • this is a quick way to confirm that your frosting is the perfect consistency
    • press a spatula into your frosting and pull it up. 
    • the frosting should be a stiff peak with a slight curl on the end
    • if it’s too stiff add more milk, if it’s too thin, add more powdered sugar (1/3 cup at a time)

Our favorite recipes with buttercream:

Mini Vanilla Funfetti Cake


Room temperature ingredients: When your sweets are baking, air expands and helps to create a light tender result. They make baking so much smoother with the best tasting results! 

Butter + Sugar: Cream together the butter & sugar until it turns fluffy. It’s important to not over-cream your butter. We suggest beating until both are combined & fluffy (1-2 minutes) 

Level Cakes. If your cakes are domed, you can use a knife or a cake leveler to even out the cake. This would make the tops of the cake even for the layers. To get even layers without using a knife or a cake leveler, we use baking straps around the cake pans!

Stacking The Cake: Make sure the cakes are lined up properly. You wouldn’t want ‘leaning tower of Pisa’ style cakes!

Crumb Coat: This is a thin layer of buttercream around the cake to make a nice base for the real layer of butter cream. It’s called a crumb coat because it seals in all the crumbs of the cake so they don’t appear in the final buttercream layer of the cake. I like to chill my crumb coat in the fridge for 10-15 minutes before adding a clean, smooth layer of buttercream.

Mini Vanilla Funfetti Cake


Butter: Softened butter will add to this extremely fluffy I love to pair butter with sour cream because it brings out a softer, moist cake crumb.

Sugar: The sugar adds sweetness to the cake!

Eggs: The base structure of this cake is eggs! For a non dairy alternative, sub flax eggs, applesauce, or use Bob’s Red Mill Egg Replacer.

Sour Cream: Add sour cream to get a soft & moist crumb. You can sub full fat greek yogurt, dairy-free vanilla yogurt, or milk. 

Vanilla Extract: This is our flavor component (in addition with bananas) For different flavors, add different extracts (almond, coconut, rum, etc).

Butter: Softened butter is the most important part to buttercream. Leave your butter out for 30-45 minutes for the best softened butter. A great substitute is vegan butter! 

Powdered Sugar: Sift your powdered sugar before beating it with the butter. This will give you the best clump-free buttercream frosting!

Let’s get into this mini Vanilla Funfetti Cake!

Mini Vanilla Funfetti Cake

This Mini Vanilla Funfetti Cake is just as good as it looks. Wrapped in a sweet buttercream & funfetti sprinkles in every bite. It's a perfect mini recipe for birthday parties, brunch, or fun events!
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  • cups all purpose flour
  • tsp baking powder
  • ½ tsp baking soda
  • ½ cup butter softened
  • 1 cup white sugar
  • 2 eggs
  • ½ cup sour cream
  • 2 tsp vanilla extract
  • 1 cup funfetti sprinkles

Vanilla Buttercream

  • cups butter softened
  • cups powdered sugar
  • 3 tsp heavy whipping cream
  • 1 tsp vanilla extract


  • Preheat oven to 350°F.
  • Grease down 2 x 6-inch cake pans and line with parchment paper.
  • In a small bowl combine flour, baking powder, baking soda, and salt together.
  • In a large bowl cream the butter and sugar together. Slowly beat in each egg and mix on medium until they're fully blended. Add the sour cream and vanilla extract.
  • Add the flour mixture into wet mix. Mix until all flour is absorbed and a thick batter forms. Pour in the funfetti sprinkles & mix until the sprinkles are evenly coated and mixed into the batter.
  • Pour the cake batter into the pans, filling them ½ way (you may have a bit left over, be sure not to overfill your pan). Bake for 30-32 minutes or until an inserted toothpick comes out clean.

Vanilla Buttercream

  • In a large bowl, beat the butter until it's fluffy (1-2 minutes). Add in the powdered sugar (½ cup at a time) & beat on medium. Add in the heavy cream & vanilla extract. Beat until a smooth buttercream forms!

Frosting the Cake

  • Take a 6-inch cake, and add a generous amount of frosting to the top of the cake. Top it off with the second 6-inch cake and spread the frosting on the sides and the top of the cake until no specs of the cake shows.*
  • Decorate the cake with sprinkles & enjoy!


*If your buttercream is too thick, add 1 tsp milk. If it’s too loose, add 1/4 cup powdered sugar
Keywords Buttercream, Cake, Funfetti, Vanilla
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How much are you loving funfetti in the summer? Leave us a comment below!

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