Homemade Funfetti Cake is the sugary celebration your kitchen has been waiting for—a vibrant and cheerful cake infused with colorful sprinkles that will bring joy to any occasion. Whether you’re hosting a birthday party, commemorating a special milestone, or simply indulging your sweet tooth, this cake is a real crowd-pleaser. With its fluffy texture and moist crumb, every bite is a burst of fun! Plus, making it from scratch means you can customize it to your liking, from the amount of sprinkles to the frosting style.

Table of Contents

Why You’ll Love This Recipe
Ingredients You’ll Need
How to Make Homemade Funfetti Cake
Chef’s Helpful Tips
Recipe FAQs
Homemade Funfetti Cake

I first discovered the magic of funfetti cake at a friend’s birthday party years ago. The joy it brought was contagious, and I knew I had to recreate that joy in my own kitchen. This homemade version not only satisfies cravings but also tends to elevate any dessert table, outshining many store-bought varieties. So, grab your mixing bowl and baking pan; let’s get ready to create something special that will have everyone reaching for seconds!

Why You’ll Love This Recipe

Simple & Quick: Ready in about 1 hour from start to finish—perfect for unexpected cravings!
Irresistible Flavor: Buttery cake with a hint of sweetness, bursting with colorful sprinkles for fun texture.
Eye-Catching Appeal: Lively colors and pretty frosting make it a showstopper for any gathering.
Flexible Serving: Enjoy it for dessert, at parties, or even as a delightful snack throughout the day!
Diet-Friendly Options: Easily transform into cupcakes or layer cakes for creative serving options.

Ingredients You’ll Need

2 cups all-purpose flour: A key player that forms the cake’s structure. For a lighter cake, consider using cake flour.
2 teaspoons baking powder: This helps the cake rise to fluffy perfection. Be sure it’s fresh for the best results.
¾ teaspoon salt: Balances the sweetness and enhances flavor.
1 cup unsalted butter, melted: Brings richness and moisture; ensure it’s melted but not too hot.
1 ½ cups granulated sugar: Sweetens the cake beautifully; for a twist, try using coconut sugar for an added caramel flavor.
4 large eggs: Adds fluffiness and binds the ingredients together; use room temperature eggs for better mixing.
1 teaspoon vanilla extract: A must for flavor complexity; consider pure vanilla for the best taste.
1 cup buttermilk: Adds moisture and tang. You can make your own by mixing milk with lemon juice or vinegar.
1 cup rainbow sprinkles: The fun element! Make sure they’re nonpareils for the best results in the cake.
1 cup unsalted butter, softened: Essential for making a creamy frosting; bring to room temperature before beating.
4 cups powdered sugar: Sweetness and volume for the frosting; sifting it first can help prevent lumps.
1 teaspoon vanilla extract (for frosting): Infuses the frosting with that lovely vanilla essence.
½ teaspoon salt (for frosting): Helps balance sweet flavors in the frosting.
2-5 tablespoons heavy whipping cream: Adjust to get your desired frosting consistency.
½ cup sprinkles plus more for topping: More colorful sprinkles for the perfect finishing touch.

How to Make Homemade Funfetti Cake

Preheat the oven: Begin by preheating your oven to 350°F. Grease and flour a 9×13-inch baking pan to ensure your cake releases easily after baking.
Mix dry ingredients: In a medium bowl, whisk together 2 cups of all-purpose flour, 2 teaspoons of baking powder, and ¾ teaspoon of salt. Set this mixture aside.
Combine butter and sugar: In a large mixing bowl, use a hand mixer or a stand mixer to beat 1 cup of melted unsalted butter with 1 ½ cups of granulated sugar on medium speed until the mixture is smooth and fluffy.
Incorporate the eggs: Add the 4 large eggs one at a time, mixing well after each addition. Stir in 1 teaspoon of vanilla extract to enhance the flavor profile.
Add buttermilk and dry ingredients: Alternately mix in 1 cup of buttermilk and the dry flour mixture, beginning and ending with the buttermilk. Mix just until the batter comes together; be sure to scrape the bowl to ensure everything is combined. Gently fold in 1 cup of rainbow sprinkles.
Bake the cake: Pour the batter into the prepared baking pan, smoothing the top for even baking. Bake for 30-40 minutes, or until a toothpick inserted into the center comes out clean. Allow the cake to cool completely in the pan.
Prepare the frosting: In a mixing bowl, beat 1 cup of softened unsalted butter with your mixer until creamy. Gradually add 4 cups of powdered sugar, one cup at a time, until a crumbly mixture forms. Mix in 1 teaspoon of vanilla and ½ teaspoon of salt, then add 2 tablespoons of heavy whipping cream and beat until smooth. If it’s too thick, add more cream a tablespoon at a time until your desired consistency is reached. Finally, fold in more sprinkles for joyful texture.
Frost the cake: Once your cake has completely cooled, spread the frosting generously over the top. Sprinkle additional sprinkles on top for an extra festive touch. For an easier frosting experience, I find using an offset spatula works wonders. Store your leftovers loosely covered at room temperature for up to 2 days.

Storing & Reheating
For leftovers, wrap your homemade Funfetti Cake tightly in plastic wrap or place it in an airtight container to maintain its freshness. At room temperature, it will keep well for about 2 days. For longer storage, refrigerate it for up to one week. If you wish to freeze it, use a sturdy container or wrap it in plastic wrap and then aluminum foil for up to 3 months. When you’re ready to enjoy, thaw it in the fridge overnight and let it come to room temperature before serving. The texture may change slightly, but a quick re-whip of the frosting can refresh it beautifully.

Chef’s Helpful Tips

Be careful not to overmix the batter once you add the flour; this can result in a dense cake.
Ensure your eggs and butter are at room temperature before mixing—this promotes even blending and a fluffier cake.
Test your cake for doneness by inserting a toothpick into the center. It should come out clean or with a few moist crumbs.
If you want an intense vanilla flavor, consider adding a bit more vanilla extract to the batter or frosting.
For a more festive touch, drizzle some chocolate ganache on top with a few sprinkles for added decoration.
You can bake this batter into 24 cupcakes or two round 9-inch cake pans as well, making it versatile for different occasions.

Homemade Funfetti Cake is a joy to make and an even greater joy to eat. Its delightful flavors and charming presentation can light up any gathering, making it truly irresistible. Don’t hesitate to experiment with the sprinkles or add a layer of fruity jam between your cake layers for variety. Baking should be an adventure, so feel free to add your own twist to this fun recipe! Enjoy every slice and spread the cheer with family and friends!

Recipe FAQs

How can I make this cake gluten-free?

To make a gluten-free version of the Homemade Funfetti Cake, simply substitute the all-purpose flour with a 1:1 gluten-free baking mix. Ensure it contains xanthan gum for the best texture.

Can I use milk instead of buttermilk?

Yes, you can replace buttermilk with regular milk. To mimic the tangy flavor, add 1 tablespoon of lemon juice or white vinegar to 1 cup of milk and let it sit for about 5 minutes before using.

What type of sprinkles should I use?

For the best results in baking, use nonpareils or jimmies. Nonpareils tend to hold their color better during baking, whereas jimmies are great for decorating as they won’t bleed into the frosting.

How do I store leftover cake?

Store any leftover cake at room temperature for up to 2 days, tightly wrapped in plastic wrap. If you need to keep it longer, refrigerate it for up to a week or freeze for up to 3 months.

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Homemade Funfetti Cake

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Author: Anna
Prep Time: 15 minutes
Cook Time: 55 minutes
Total Time: 1 hour 10 minutes
Yield: 24 servings 1x
Category: Desserts & Appetizers
Method: Baking
Cuisine: American

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Description

This Homemade Funfetti Cake is a delightful treat packed with colorful sprinkles and an irresistible flavor. With simple prep and fresh ingredients, it’s the perfect dessert for celebrations, parties, or just a sweet craving!

Ingredients

Scale

2 cups (248g) all-purpose flour
2 teaspoons baking powder
¾ teaspoon salt
1 cup (226g) unsalted butter, melted
1 ½ cups (300g) granulated sugar
4 large eggs
1 teaspoon vanilla extract
1 cup (237ml) buttermilk
1 cup (225g) rainbow sprinkles
1 cup (226g) unsalted butter, softened
4 cups (452g) powdered sugar
1 teaspoon (15 ml) vanilla extract
½ teaspoon salt
2–5 tablespoons (30-75ml) heavy whipping cream
½ cup (112g) sprinkles plus more for topping

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Instructions

Preheat the oven to 350°F and grease a 9×13-inch baking pan.
In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
In a large bowl, mix melted butter and sugar on medium speed until smooth. Add eggs one at a time, then mix in the vanilla extract.
Gradually incorporate buttermilk with the dry ingredients, mixing in between until well combined, starting and ending with buttermilk. Scrape the bowl while mixing. Gently fold in sprinkles.
Pour the cake batter into the prepared baking pan and bake for 30-40 minutes or until a toothpick comes out clean. Let it cool completely before frosting.
For the frosting, beat softened butter until creamy, then add powdered sugar one cup at a time until crumbly. Mix in vanilla and salt, adding heavy cream until smooth and of desired consistency. Fold in sprinkles.
Frost the cooled cake and add extra sprinkles on top. Use an offset spatula for easy frosting. The cake can be stored loosely covered for up to 2 days.
This recipe can also be used to make 24 cupcakes, two 9-inch rounds, or three 8-inch rounds.

Notes

Ensure to scrape the bowl while mixing the cake batter for even consistency.
Let the cake cool completely to prevent the frosting from melting.
Use different colored sprinkles for a festive look.