Easy Homemade FUNFETTI®-Inspired Cake with Vanilla Buttercream

This Funfetti Cake recipe is as close to store-bought Funfetti Cake Mix that I’ve been able to replicate at home. I have no shame in admitting my love for that stuff, but it’s nice to be able to pronounce all the ingredients and make a scratch cake in literally 5 minutes!

Easy Homemade Funfetti Cake slices with Funfetti frosting

This is a repost of a recipe from a few years back. Enjoy! And to all of those celebrating the Fourth of July, Happy Fourth!

Funfetti Cake for a Celebration

I’ve always loved Funfetti. Who can resist all those sprinkles buried in soft, fluffy cake? None of us in my house can.

This Funfetti Cake has sprinkles in the batter and also has a wall of sprinkles in the Funfetti Frosting. Sprinkle overload, such a beautiful thing.

Homemade Confetti Cake with Funfetti Frosting

How to Make Homemade Funfetti Cake

For this Funfetti Cake (sometimes called Confetti Cake) I use an easy, no mixer cake that’s adapted my favorite buttermilk cake base that I’ve used for so many cakes including Vanilla Cake with Vanilla Bean Browned Butter Glaze, Lemon Buttermilk Cake with Lemon GlazeBlueberry Muffin and Buttermilk Pancakes CakeCream Cheese-Swirled Cherry and Mixed Berries Cake, The Best Pineapple Upside-Down Cake, and Caramelized Banana Upside-Down Cake and many more.

Easy Homemade Funfetti Cake with Vanilla Buttercream – Move over storebought cake mix!! This easy cake only takes minutes to make and tastes wayyyy better!! Loaded with sprinkles in EVERY bite!!

I love the cake base because it’s fast and easy to make, and the cakes always turn out supremely moist, springy, and fluffy thanks to buttermilk, sour cream, and oil.

That trifecta of moisturizing and tenderizing ingredients makes it impossible to have a dry cake.

Easy Homemade Funfetti Cake with Vanilla Buttercream – Move over storebought cake mix!! This easy cake only takes minutes to make and tastes wayyyy better!! Loaded with sprinkles in EVERY bite!!

Do I Have To Make The Frosting From Scratch

If you’re in a time crunch you don’t necessarily need to make scratch frosting. You can cheat and use a tub of store bought frosting.

However, since you’re making a scratch cake, making scratch frosting is the way I would do things. It only takes a couple minutes to whip together.

Easy Homemade Funfetti Cake with Vanilla Buttercream – Move over storebought cake mix!! This easy cake only takes minutes to make and tastes wayyyy better!! Loaded with sprinkles in EVERY bite!!

More Funfetti recipes:

Here’s a video showing you just how I make the cake.

Easy Homemade FUNFETTI®-Inspired Cake with Vanilla Buttercream

The recipe is as close to cake mix Funfetti that I’ve been able to replicate at home. I love that stuff, but it’s nice to be able to pronounce all the ingredients and make a scratch cake in literally 5 minutes. This easy, no mixer cake is adapted my favorite buttermilk cake base that I’ve used for so many cakes. I love the cake base because it’s fast and easy to make, and the cakes always turn out supremely moist, springy, and fluffy thanks to buttermilk, sour cream, and oil. That trifecta of moisturizing and tenderizing ingredients makes it impossible to have a dry cake. Between the sprinkles in the batter and a nice wall of sprinkles on the buttercream, you’ll be in sprinkle overload, such a beautiful thing.

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Ingredients:

Cake

  • 1 cup all-purpose flour
  • 3/4 cup granulated sugar
  • 2 teaspoons baking powder
  • pinch salt, optional and to taste
  • 1 large egg
  • 1/2 cup buttermilk
  • 1/3 cup sour cream, lite is okay (plain Greek yogurt may be substituted)
  • 1/4 cup canola or vegetable oil
  • 2 teaspoons vanilla extract
  • 1/2 cup sprinkles, or to taste

Vanilla Buttercream Frosting

  • 1/2 cup unsalted butter, softened
  • 2 teaspoons vanilla extract
  • pinch salt, optional and to taste (helps offset the sweetness)
  • 1 1/2 to 2 cups confectioners’ sugar (I use 2 cups)
  • 1/3 cup sprinkles, or to taste

Directions:

  1. Preheat oven to 350F. Line an 8-by-8-inch baking pan with aluminum foil, spray with cooking spray; set aside.
  2. Cake – In a large bowl, whisk together flour, granulated sugar, baking powder, optional salt; set aside.
  3. In a separate small bowl, whisk together the egg, buttermilk, sour cream, oil, and vanilla.
  4. Add the wet mixture to the dry, mixing lightly with a spoon or folding with a spatula until just combined. Small lumps will be present, don’t overmix or try to stir them smooth.
  5. Gently stir in the sprinkles, taking care not to overmix or they could bleed.
  6. Turn batter out into prepared pan and bake for about 30 minutes (start checking at 25 minutes), or until center is set and not jiggly, and a toothpick inserted in the center comes out clean or with a few moist crumbs, but no batter.
  7. Place pan on a wire rack and allow cake to cool. While cake cools, make the frosting.
  8. Vanilla Buttercream Frosting – To a large bowl, add the butter, vanilla, optional salt, and slowly add the confectioners’ sugar while beating with a handheld electric mixer until smooth and fluffy, about 3 minutes.
  9. Turn frosting out onto cooled cake, smoothing it lightly with a spatula or offset knife.
  10. Evenly sprinkle the sprinkles before slicing and serving. Cake will keep airtight at room temperature for up to 5 days (I’m comfortable storing frosted cakes at room temp, if you’re not store in the fridge) or in the freezer for up to 6 months.

Cake base adapted from Vanilla Cake with Vanilla Bean Browned Butter Glaze

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203 comments on “Easy Homemade FUNFETTI®-Inspired Cake with Vanilla Buttercream”

  1. I’m new to your blog, but I must say… I can’t wait to bake/cook my way through all of your amazing recipes!
    I was wondering if regular vanilla yogurt would be an acceptable substitution for the sour cream?
    Thank you so much, and keep the recipes coming! :)

  2. Can I just say thank you! Your recipes are making my friends think I am some 5-star baker! Browsing for quick, simple recipes for a variety of events, yours always looked the most amazing and were equally as easy-sounding and let me just say they have far exceeded my expectations. I am so excited to continue to try out more of your recipes! 

    • Thanks for trying the recipe and I’m glad it came out great for you and that the recipe helped make you look like a superstar & exceeded expectations! LMK what else you make and try!

  3. Just finished making this cake, it ended up a bit undercooked and isn’t having much success here in France where they find the American icing too sweet and tasting “too much like butter” (well, obviously, it’s a BUTTER cream icing!) So I’m now the proud owner of a gigantic cake to eat all on my own. Yours looks much much better though!

    • Thanks for trying the recipe and all ovens vary quite a bit and with the conversion from Celsius to Farenheit, cups/teaspoons to metric, the differences in ingredients, etc. I am just impressed you tried the cake! But that could account for the difference in baking time and probably just baking it a bit longer is all you need if you ever try it again.

      As for the BUTTERcream icing, yes, it’s butter-based so tastes like American buttercream. The cake is so ‘classic American’ and the type of thing that probably unless you grew up eating cakes like this, it may be a new experience and not a familiar food. But thanks for trying to share an American dessert with your French friends!

  4. Can this recipe be doubled? I’d like to use a 9 x 12 cake pan.

  5. Hi! I want to make this for my sons first birthday! It needs to be dairy free tho, can I sub almond milk for the sour cream?
    Thank you!

  6. Wow today I made the funfetti cake and the blueberry lemon one and they are absolutely the best! The white cake was exceptional. I have not in my life had such a wonderfully moist awesome tasting vanilla cake ever. Now that I have found your wonderful recipes that I cannot thank you enough for sharing with everyone, I will never ever buy a cake mix again because yours are simply the best ever. Thank you sooooo much

  7. I feel almost small compared to all these beautiful talented cake and pastry lovers. Is this recipe for anyone? can you use gluten free ingredients for example? Will it make a difference?

  8. Pretty and sinfully delicious. I certainly heart my sprinkles just as much as Sally and Jessica!

  9. Another winner Averie!!!!! I am making this right now as I type for my baby girls 15th birthday today!!! She loves sprinkles. :) I double the recipe and I’m using 8 inch round cake pans. Also im just mixing whatever sprinkles ive got on hand, and thats quite a lot!!!!Ill let you know how it turned out when we dig in.

    • I used a hodge-podge of sprinkles, too, from all my various bottles and tubs and collections from various holidays, stores, etc. It seemed to work though :) Glad that you did the same and happy bday to your 15 year old ‘baby’! LMK what everyone thinks about the cake!

  10. This is one festive cake! Love all the colors!

  11. Yayyy! I love Jess (she was the 1st food blogger I obsessed over) and love this fun funfetti cake!

  12. LOVE the idea of a virtual baby shower! I love al the bright colors in this cake–just makes me want to smile!

  13. What a perfect recipe for Jessica! This looks like so much fun and oh so yummy!

  14. I love how y’all all got together to throw Jessica a virtual baby shower! What an awesome idea. I almost want to cry for her b/c it’s so cool. Also, I just so happen to be throwing my sister-in-law a baby shower in a couple of weeks, and I was going to use Jessica’s funfetti cupcake recipe, but I think I might try this instead since I’ve made hers before (which were amazing. Clearly). Oh, and I’m going to also be making a candy corn something of yours too since I just bought a butt load of the stuff for 75% off at Walgreens. #winning

  15. Vanilla cake is THE BEST!! Love this. Perfect for Jess! Thanks so much for contributing this recipe!

  16. Looks amazing! Do you think the base would work as cupcakes? I have a last-soccer-game party for my kid’s team this weekend, and I would love to make these in cupcake form.

  17. Craving this right now!

  18. We LOVE funfetti cake for our birthdays, so I am so happy to now have a homemade recipe to share. Love this. Thank you!

  19. Yummy! What bright and cheerful photos, Averie!!! This cake – omg!! I love how all out you went with the sprinkles on this cake! Pinned!

  20. Having replica recipes with ingredients you can pronounce is WAY better than the store bought version. This is magical, just like Jessica.

  21. Where did you get those pretty colored sprinkles? I love the combination of pink, purple, yellow, red…not like any sprinkles I’ve ever seen. Can you share? Thanks.

    • HODGE PODGE! It’s a mix of about 3 kinds, odds and ends, collected at Target, the grocery store, and Bed Bath & Beyond. That’s why they look different than most, it’s a mix-and-match special :)

  22. So pretty! I love the sprinkles everywhere. As a new grandmother-to-be, I think I’d better tuck this recipe away in my Welcome to Lulu’s House file :)

  23. This is the most colorful funfetti cake ever. Looks so delicious! Pinned!

  24. This is my kinda cake! Just love all the colours – Jess is one lucky lady!

  25. LOVE this fun, colorful cake, Averie! It is perfect for a baby shower! Congrats to Jessica. :)

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