Homemade Funfetti Cake and Buttercream Frosting

Frosting is a big deal in our family.  It all started with our mom, who loved having a store bought birthday cake every year just for the amazing buttercream frosting from the bakery.  We would even request extra flowers on the cake just so there would be more frosting!  Haha!  That may sound gross, but our family loves a good frosting!
I found this recipe on Sally’s Baking Addiction, and I’ll tell ya, it is the best frosting I have EVER made!  It is so light and fluffy that you’ll want to eat it by the spoonful.  Seriously, it’s that good.
My little boy turned one this week, so it gave me an excuse to try it!  Luckily, my family is little so there was plenty of leftover cake. 🙂  My little man agreed with me on the frosting, as that was the only part he ate.  But don’t worry, the whole cake is fabulous! 😉


Homemade Funfetti Cake and Buttercream Frosting

35 minPrep Time

35 minTotal Time

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    Homemade Funfetti Cake:
  • 1 2/3 cups all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1/2 teaspoon salt
  • 3/4 cup sugar
  • 1/4 cup light brown sugar
  • 1/2 cup (1 stick) unsalted butter, melted
  • 1 large egg
  • 1/4 cup sour cream
  • 3/4 cup milk
  • 1 Tablespoon vanilla extract
  • 2/3 cup sprinkles (not nonpareils)
  • Vanilla Buttercream Frosting:
  • 1 cup (2 sticks) unsalted butter, softened to room temperature
  • 3-4 cups powdered sugar
  • 1/4 cup half-and-half (or heavy cream)
  • 2 1/2 teaspoons vanilla extract
  • dash of salt


  1. Preheat oven to 350 degrees.  Spray a 9-inch baking pan (round or square) with nonstick cooking spray.  Set aside.  In a medium bowl, mix together flour, baking powder, baking soda and salt.  Set aside.  In a large bowl, melt butter in the microwave.  Whisk in the sugars getting out all lumps (mixutre will be gritty).  Whisk in egg, sour cream, milk and vanilla until combined.  Slowly mix in dry ingredients until no lumps remain.  Stir in sprinkles, but don't overmix to avoid sprinkles bleeding their color.  Pour batter into prepared cake pan.  Bake for 20 minutes. Remove from oven and cover loosely will aluminum foil.  Bake for 13-17 more minutes or until a toothpick comes out clean.  Cool completely.
  2. Frosting:
  3. To make the frosting, beat softened butter on medium speed for three minutes, until smooth and creamy.  Add powdered sugar, half and half, vanilla extract and a dash of salt.  Continue to beat frosting on high for 3 minutes.  Add more or less powdered sugar to reach desired consistency.  Frost cool cake as desired and top with sprinkles.  Store cake at room temperature.



3146 cal


8 g


762 g


27 g
Click Here For Full Nutrition, Exchanges, and My Plate Info

(Recipe from Sally’s Baking Addiction)

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29 Responses to “Homemade Funfetti Cake and Buttercream Frosting”

  1. sally @ sallys baking addiction
    Hi! Thanks for making my homemade funfetti cake recipe. I'm glad you like it! I appreciate those who make my recipes link my my website for the recipe, especially if nothing was changed and the words are copied/pasted. Thank you!
  2. Katherine
    This is great!! I love Funfetti cake...it's a favorite in our house. I can't wait to try this when it gets a little cooler here so I can turn on the oven. I LOVE buttercream frosting from bakeries. I crave it. When I have a slice of bakery cake, I always request the slice with the most frosting flowers.
  3. Anyonita
    I'm with your son: that cake excites me too! :) Ha! One of the things I miss most about American food is FUNFETTI! I cannot wait to make this! Thank you so much for linking up with me this week at Tasty Tuesdays! I?ve pinned this & shared it with my followers! Please be sure to stop back by the party and check out some of the other links!
  4. Easy Life Meal & Party Planning
    My daughter loves funfetti cake and she is 21 so I guess you never outgrow it! Your cake looks delicious and the photos are beautiful! She will be thrilled to have a "homemade" funfetti cake. http://www.easylifemealandpartyplanning.blogspot.com
  5. I just tried this recipe and one from another site. The cake is tasty, but a bit too sweet even though I reduced the sugar. I baked for about 30 min and still it didnt rose much. It is a very small cake, this would be like half a layer cake for my purposes.
  6. Natalie
    My sister in law asked me to make this cake for her birthday coming up!! It looks delicious and beautiful! We have a huge family when we all get together though, so I was wondering if you have ever doubled it for a bigger pan or have a recipe for a 9??13? Thank you
  7. denise
    I am making for my nephews birthday, he is turning 4. Making cupcakes with it and plus making a a ninja turtle cake but chocolate, making it a sewer with the turtles coming out of the top of it. should be interesting. thanks for this recipe
  8. Sally's baking addiction mentions yogurt in her cake; is there a reason why it's missing in your ingredients? She said that's the reason why she uses butter and her cake is so moist, because of the addition of the yogurt. Just checking!

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