Homemade Funfetti Cake is the embodiment of celebration, bringing joy with every slice. Its vibrant swirls of rainbow sprinkles make it a feast for the eyes. The golden, moist cake is both soft and fluffy, a delightful texture sure to please friends and family alike. Each bite is a sweet reminder of childhood birthdays and joyous moments, making it an ideal dessert for any occasion. When you bake this cake, you’re not just making dessert; you’re creating memories to cherish.

I still remember the first time I whipped up a homemade Funfetti Cake. The anticipation of seeing those colorful sprinkles transform my simple batter into a masterpiece filled with cheer was unparalleled. It’s the perfect dessert for celebrations, spontaneous get-togethers, or when you want to indulge in something a little fun. This recipe is straightforward, budget-friendly, and promises to impress friends at any gathering. Let me invite you warmly into this delightful baking experience!

Table of Contents

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

Why You’ll Love This Recipe

Simple & Quick: With just 15 minutes of prep time, you can have this cake ready to bake and enjoy.
Irresistible Flavor: The combination of buttery vanilla and sweet sprinkles creates a delightful taste that’s hard to resist.
Eye-Catching Appeal: This cake’s colorful sprinkles make it instantly eye-catching, perfect for parties or as a casual dessert.
Flexible Serving: Whether it’s for a birthday, holiday, or casual weekend treat, this cake fits any occasion.
Crowd-Pleasing: This recipe yields enough for 24 hearty servings, making it fantastic for sharing with friends and family.

Ingredients You’ll Need

2 cups all-purpose flour: The base of your cake, providing structure and texture.
2 teaspoons baking powder: Essential for that beautiful rise, giving your cake the fluffy consistency everyone loves.
¾ teaspoon salt: Enhances flavors, balancing the sweetness of the cake.
1 cup unsalted butter, melted: Adds rich flavor and moisture, ensuring your cake is tender.
1 ½ cups granulated sugar: Sweetens the cake while promoting a beautiful golden color.
4 large eggs: Binding the ingredients together and adding to the cake’s moistness.
1 teaspoon vanilla extract: Gives a lovely aromatic flavor that pairs perfectly with the sprinkles.
1 cup buttermilk: Ensures the cake remains moist and tender; you can substitute with yogurt or milk mixed with vinegar if needed.
1 cup rainbow sprinkles: The star ingredient that brings fun and color to the cake.
1 cup unsalted butter, softened: For creamy frosting that’s easy to spread and flavorful.
4 cups powdered sugar: Sweetens the frosting while providing the right consistency.
1 teaspoon vanilla extract: A touch of flavor in the frosting that enhances its sweetness.
½ teaspoon salt: Balances the sweetness in your frosting.
2-5 tablespoons heavy whipping cream: Adjusts the texture for the perfect creamy consistency; use more for a thinner frosting.
½ cup sprinkles plus more for topping: Take your frosting to the next level with even more vibrant color.

How to Make Homemade Funfetti Cake

Preheat Your Oven: Start by preheating your oven to 350°F (175°C) and greasing a 9×13-inch baking pan. You want it ready for that batter!
Mix Dry Ingredients: In a medium bowl, whisk together 2 cups all-purpose flour, 2 teaspoons baking powder, and ¾ teaspoon salt. This will ensure your dry ingredients are evenly combined and ready for the wet ingredients.
Cream Butter and Sugar: In a large bowl, combine 1 cup melted unsalted butter and 1 ½ cups granulated sugar. Mix on medium speed until smooth and creamy. Adding air to the butter and sugar will help create a light texture.
Incorporate Eggs and Vanilla: Add in 4 large eggs one at a time, mixing well after each addition. Next, stir in 1 teaspoon vanilla extract for that comforting flavor.
Combine Wet and Dry Ingredients: With the mixer on medium-high speed, alternately mix in 1 cup buttermilk and your dry ingredients, starting and ending with the buttermilk. Make sure to scrape the sides of the bowl to ensure everything is well incorporated. Gently fold in 1 cup of rainbow sprinkles; we want those colorful bites throughout the cake!
Bake the Cake: Pour the batter into your prepared pan and bake for 30-40 minutes, or until a toothpick comes out clean when inserted into the center. The cake should spring back slightly when touched, indicating it’s perfectly baked.
Cool Completely: Remove the cake from the oven and let it cool in the pan. Once cool, transfer to a wire rack to cool completely before frosting.
Make the Frosting: In a large bowl, beat 1 cup softened unsalted butter on medium speed until creamy. Gradually add in 4 cups powdered sugar, one cup at a time, mixing until you have a crumbly mixture. Mix in 1 teaspoon vanilla extract and ½ teaspoon salt, then add 2 tablespoons heavy cream. Beat until smooth, adjusting the cream until you reach your desired consistency. Fold in ½ cup sprinkles for an extra touch of fun!
Frost the Cake: Once your cake is completely cool, frost it generously with the buttercream. I personally find an offset spatula helps to spread the frosting smoothly. Top with additional sprinkles for that festive flair!
Serving Suggestions: Slice into 24 squares and enjoy! You can also turn this batter into 24 cupcakes, two 9-inch round cakes, or three 8-inch round cakes if you’d prefer.

Storing & Reheating

Store any leftover homemade Funfetti Cake loosely covered at room temperature for up to 2 days. For longer storage, place pieces in an airtight container in the refrigerator, where they’ll stay fresh for about a week. You can also freeze the cake for up to 3 months if you wrap it tightly in plastic wrap and then foil. When you’re ready to enjoy a slice, simply thaw at room temperature. Note that the texture may change slightly, but a quick 10 seconds in the microwave can refresh the moisture and flavor.

Chef’s Helpful Tips

Ensure your butter and eggs are at room temperature to help create a fluffy batter.
Don’t overmix after adding the flour; this can lead to a tough texture.
If you prefer a denser cake, use yogurt instead of buttermilk for a slight variation.
To prevent the sprinkles from bleeding into the batter, toss them in a tablespoon of flour before folding them in.
If you have extra batter, consider making a few cupcakes for a snack – they’ll bake in about 20 minutes.

Homemade Funfetti Cake captures the essence of celebration and joy, making it a choice treat for any occasion. With its soft, buttery texture and colorful sprinkles, it’s bound to be loved by young and old alike. Don’t hesitate to experiment with flavors or add toppings that inspire you—baking is all about creativity! Enjoy making this delightful cake, and may each bite bring a smile!

Recipe FAQs

Can I make this cake ahead of time?

Absolutely! You can bake the cake a day in advance. Just store it tightly covered at room temperature until you’re ready to frost and serve. This actually allows the flavors to meld beautifully!

What if I don’t have buttermilk?

If you don’t have buttermilk on hand, a quick substitute is to mix 1 cup of milk with 1 tablespoon of white vinegar or lemon juice. Let it sit for about 5 minutes before adding it to the batter to mimic the acidity.

Can I use other types of sprinkles?

Yes! While rainbow sprinkles are traditional, feel free to mix it up with themed sprinkles for holidays or events. Just keep in mind that nonpareils may bleed color more than jimmies.

How should I store leftover cake?

You can keep leftover Funfetti Cake at room temperature for up to 2 days or refrigerate it for up to a week. Make sure to cover it loosely to keep it from drying out. For longer storage, freeze slices in an airtight container for up to 3 months.

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Recipe Card

Homemade Funfetti Cake

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

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Description

This Homemade Funfetti Cake is a delightful sweet treat featuring vibrant sprinkles and a moist texture. With simple ingredients like buttermilk and vanilla, it’s perfect for parties or just a fun dessert.

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. Grease and flour a 9×13-inch baking pan.
In a medium bowl, whisk together the flour, baking powder, and salt, then set aside.
In a large bowl, mix the melted butter and granulated sugar using a mixer on medium speed until smooth. Add the eggs one at a time, mixing well after each addition, then blend in the vanilla extract.
Alternately add the buttermilk and dry ingredients into the butter mixture, mixing on medium-high speed. Start and end with the buttermilk, and remember to scrape the bowl. Gently fold in the rainbow sprinkles.
Pour the batter into the prepared pan and bake for 30-40 minutes, or until a toothpick inserted comes out clean. Allow to cool completely before frosting.
For the frosting, beat the softened butter until creamy, then gradually add powdered sugar, one cup at a time, until a crumbly texture forms. Blend in vanilla and salt, then add 2 tablespoons of heavy cream, mixing until smooth. Adjust with more cream to achieve the desired consistency, then fold in sprinkles.
Frost the cake and top with additional sprinkles, using an offset spatula for ease. Store 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 the butter is not too hot when mixing with sugar to avoid cooking the eggs.
Use a toothpick to check for doneness to prevent over-baking the cake.
For extra flavor, consider adding almond extract to the frosting.