Confetti Cupcakes with Pink Strawberry Buttercream Frosting

This recipe is so simple to make and people will have no idea that it comes from a cake mix! It really is one of the softest and most delicious cupcakes I have ever eaten. You can add any color of sprinkles to the cake batter to match the occasion.
The best part about this cupcake is the frosting . . . I have been looking for a fresh strawberry frosting recipe and after lots of trial and error, I came up with this one after combining lots of ideas from other recipes. It ends up being fluffy and light . . . I could seriously eat it by itself with a spoon! The strawberry flavor is delicious!

Serves: 24

Confetti Cupcakes with Pink Strawberry Buttercream Frosting

15 minPrep Time

20 minCook Time

35 minTotal Time

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  • 1 box white cake mix (I used a 16.25 oz Duncan Hines cake mix)
  • 4 egg whites
  • 1/4 cup oil
  • 3/4 cup milk (I used 1%)
  • 3/4 cup sour cream (I used light)
  • 2 teaspoons vanilla extract
  • 1/2 cup jimmies or sprinkles (whatever color you want)
  • Frosting
  • 1 cup (2 sticks) of butter at room temperature
  • 1 teaspoon of vanilla extract
  • 1/3 cup strawberry jam or preserves (I used our Homemade Freezer Jam)
  • 4-5 cups powdered sugar (just keep adding it until it's the consistency you want)
  • 2 Tablespoons milk


  1. Combine the egg whites, oil, milk, sour cream, and vanilla gently with a whisk. Then sift in your cake mix and sprinkles and gently stir. Fill 24 cupcake liners 3/4 full with cupcake batter and bake at 350 degrees for 15-20 minutes (or until a toothpick stuck in the middle of a cupcake comes out clean).
  2. Frosting:
  3. Beat butter and vanilla together until fluffy. Add strawberry jam and beat until incorporated. Add powdered sugar, 1 cup at a time. Mix until frosting is fluffy. It will seem kind of dry, so add 1-2 Tablespoons of milk until it's the consistency you like. Pipe onto cooled cupcakes and top with sprinkles (if you want).


 My cute little girl turns 5 years old this week . . . she is very girly and loves all things pink. We are going to be making these cupcakes to celebrate her birthday.



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11 Responses to “Confetti Cupcakes with Pink Strawberry Buttercream Frosting”

    • Six Sisters
      We've only made them as cupcakes. So after about 20 minutes, just keep checking on them til a toothpick inserted in middle comes out clean. Just need to be sure it is cooked through, but not too done. Hope it all works out well and your daughter has a great 16th birthday! -The Six Sisters
    • We haven't made it with the cake being made from scratch. We did find you a recipe for Funfetti cake mix made from scratch. Here is the URL for it. It's on our new sister site - Whenever you need a recipe go there and type it in the search bar. Best of luck to you. -The Six Sisters
  1. I bake ALL the time...bread,cakes of all kinds,cookies etc etc. I made 117+ of them for a grad party.My oldest son(29) announced that these were the best thing I have EVER made! Note..he does not like chocolate(aliens must have dropped him here) I added strawberry ext to the frosting to give it a bit more strawberry flavor. ..other than that, by the recipe. Thanks so much! Sue

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