Midnight Confetti Cake
December 26, 2025
Fluffy Cake Layers With Rich Chocolate Frosting and Rainbow Sprinkles
This is the cake you save for after the noise makers and the countdown. Midnight Confetti Cake is soft, chocolate-frosted, and finished with sprinkles and sparkle because New Year’s dessert should feel like a celebration. It’s easy to make, fun to decorate, and very satisfying to slice right at midnight.
Why You’ll Love This Recipe
- Rich chocolate frosting that’s creamy and easy to spread.
- Festive rainbow sprinkles and sparkle that make it feel like a true New Year’s cake.
- Made with a cake mix base for a stress-free, practically homemade dessert.
- Easy to decorate but still looks party-ready on the table.
- Perfect for slicing at midnight, serving at a New Year’s party, or enjoying the next day.
Ingredient Notes
- Cake mix: A standard 15.25-ounce white cake mix works best here. Stick with a classic brand for consistent texture and structure.
- Whole milk: Using milk instead of water makes the cake softer and richer. Whole milk gives the best results, but 2 percent will still work.
- Sour cream: This keeps the cake moist and tender without making it heavy. Full-fat sour cream is ideal.
- Butter: Make sure it’s fully softened before mixing so the chocolate frosting comes out smooth and creamy.
- Cocoa powder: Regular unsweetened cocoa powder is perfect for this frosting. No need for Dutch-process.
- Heavy cream: Start with a smaller amount and add more as needed to get a fluffy, spreadable frosting.
- Sprinkles: Jimmies work best for the border since they’re easy to press into the sides. Nonpareils are great for the top but can bleed if mixed into frosting.
Quick Prep Notes
Can I make this cake ahead of time?
Yes. You can bake the cake layers up to one day in advance. Wrap them tightly and store at room temperature. Frost the cake the day you plan to serve it for the best texture and look.
Do I need a stand mixer for the frosting?
No. A hand mixer works just fine. Just be sure the butter is fully softened so the frosting blends smoothly.
Can I use different pan sizes?
Two 8-inch round pans give you nice, even layers. If you use 9-inch pans, the layers will be slightly thinner and may bake a few minutes faster.
Midnight Confetti Cake
Ingredients
Cake
- 1 box white cake mix (15.25 oz)
- 1 cup whole milk
- ½ cup vegetable oil
- 3 large eggs
- ½ cup sour cream
Chocolate Frosting
- 2 sticks butter, softened
- 3½ cups powdered sugar
- ½ cup cocoa powder
- 1 teaspoon vanilla extract
- 4 to 6 tablespoons heavy cream
Decorating
Other Items
Instructions
- Preheat the oven to 350°F. Spray two 8-inch round pans with baking spray and line the bottoms with parchment paper.
- In a large bowl, mix the cake mix, milk, oil, eggs, and sour cream until smooth. Divide evenly between the pans and bake according to the box directions. Let the cakes cool completely.
- To make the frosting, beat the butter until smooth and creamy. Add the powdered sugar, cocoa powder, vanilla, and heavy cream, mixing until fluffy and spreadable.
- Place one cake layer on a cake board or plate. Spread an even layer of chocolate frosting on top. Add the second cake layer, flipping it so the flat bottom faces up. Frost the top and sides of the cake, adding a second coat if needed and reserving a little frosting for decorating.
- Press rainbow sprinkles around the bottom edge of the cake. Transfer the remaining frosting to a piping bag fitted with a small star tip and pipe a thick border around the top edge. Sprinkle nonpareils over the border, then lightly dust the center of the cake with glittery sugar. Finish with a New Year’s topper.
- Slice and serve to celebrate.
FAQ
Can I use a different flavor cake mix?
Yes. Vanilla or confetti cake mix both work well and keep the cake festive.
How do I keep the sprinkles from falling off the sides?
Press them on gently while the frosting is still fresh. If the frosting has set, lightly smooth on a thin layer and add the sprinkles right away.
Can I make this without a turntable?
Absolutely. A turntable helps, but you can frost this cake on a flat plate using an offset spatula.
How should I store leftover cake?
Cover and store at room temperature for up to one day or refrigerate for up to three days. Bring slices to room temperature before serving.
Can I freeze this cake?
You can freeze the unfrosted cake layers for up to two months. Thaw completely before frosting and decorating.
Sprinkle of Fun
Save this cake for the moment the countdown ends. Turn the music up, slice it right at midnight, and let everyone grab a piece before the sparklers fizzle out. It’s the perfect low-pressure way to keep the celebration going.
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