Homemade Funfetti Cake
Looking for the ultimate sweet treat that’s as fun to make as it is to eat? You’ve come to the right place! Homemade Funfetti Cake is a vibrant, colorful dessert bursting with delightful sprinkles in every bite. Its soft, buttery texture and irresistible sweetness make it a perfect celebration cake for birthdays, family gatherings, or simply when you want to treat yourself. This fun twist on a classic vanilla cake will bring smiles to everyone’s faces, making it a staple in any dessert lover’s repertoire.
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I still remember the first time I made this cake; I was trying to impress my friends with a festive dessert for a weekend party. As I pulled it out of the oven and saw those colorful sprinkles peeking through the light golden cake, I knew I had a crowd-pleaser on my hands. The joy it brought my friends (and the way they devoured every slice) convinced me that this Homemade Funfetti Cake would forever hold a special place in my baking heart.
Why You’ll Love This Recipe
- Simple & Quick: With just 15 minutes of prep and about an hour to bake, this cake comes together in a flash.
- Irresistible Flavor: Each slice offers a delicate vanilla flavor with bursts of sweetness from those rainbow sprinkles.
- Eye-Catching Appeal: The colorful sprinkles create a fun, festive look that’s perfect for any occasion.
- Flexible Serving: Ideal for birthday parties, family celebrations, or even a spontaneous afternoon snack.
- Diet-Friendly Options: Consider making cupcakes or layer cakes; this recipe adapts effortlessly to your needs.
Ingredients You’ll Need
- 2 cups (248g) all-purpose flour: This is the base of the cake; gives it structure and a soft crumb. You can substitute with a gluten-free blend if desired.
- 2 teaspoons baking powder: This helps the cake rise, providing that light, fluffy texture we all love.
- ¾ teaspoon salt: Balances the sweetness, bringing out the flavors of the cake.
- 1 cup (226g) unsalted butter, melted: Provides richness and depth; be sure it’s unsalted to control the flavor.
- 1 ½ cups (300g) granulated sugar: Sweetens the cake and creates a lovely moist texture.
- 4 large eggs: Acts as a binding agent; ensures the cake holds its shape and does not crumble.
- 1 teaspoon vanilla extract: Infuses a wonderful flavor, making each bite deliciously comforting.
- 1 cup (237ml) buttermilk: Adds moisture and tang; if you don’t have buttermilk, mix milk with a tablespoon of vinegar or lemon juice as a substitute.
- 1 cup (225g) rainbow sprinkles: The star of the show! These add color and excitement; opt for jimmies rather than nonpareils to avoid bleeding.
- 1 cup (226g) unsalted butter, softened (for frosting): Creates a creamy, luscious frosting.
- 4 cups (452g) powdered sugar (confectioners’ sugar): Sweetens the frosting while giving it a smooth texture; sift if needed to avoid lumps.
- 1 teaspoon (15ml) vanilla extract (for frosting): Enhances flavor; feels indulgent and homemade.
- ½ teaspoon salt: Again, balances flavors in the frosting.
- 2-5 tablespoons (30-75ml) heavy whipping cream: This helps reach a perfect frosting consistency; adjust as needed based on your desired thickness.
- ½ cup (112g) sprinkles plus more for topping: To mix into the frosting and crown your cake with more festive colors!
How to Make Homemade Funfetti Cake
Preheat your oven: Set it to 350°F (175°C) and grease and flour a 9×13-inch baking pan to ensure easy release once baked.
Combine dry ingredients: In a medium bowl, whisk together 2 cups all-purpose flour, 2 teaspoons baking powder, and ¾ teaspoon salt. This helps evenly distribute the leavening agent.
Cream butter and sugar: In a large bowl, mix 1 cup melted unsalted butter and 1 ½ cups granulated sugar on medium speed until smooth and fluffy. This should take about 3-5 minutes.
Incorporate eggs and vanilla: Add in 4 large eggs one at a time, beating well after each addition. Then mix in 1 teaspoon vanilla extract until everything is thoroughly combined.
Alternate dry and wet ingredients: Gradually add the buttermilk (1 cup) alternately with the dry mixture, beginning and ending with the buttermilk. Mix on medium-high speed until just combined; avoid overmixing.
Fold in the sprinkles: Gently stir in 1 cup rainbow sprinkles until evenly distributed.
Bake the cake: Pour the batter into the prepared pan and bake for 30-40 minutes, or until a toothpick inserted in the center comes out clean and the edges are lightly golden.
Cool the cake: Allow the cake to cool completely in the pan on a wire rack before frosting to prevent the frosting from melting.
Prepare 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 it forms a crumbly mixture.
Mix in flavor: Add 1 teaspoon vanilla extract and ½ teaspoon salt, then add 2 tablespoons heavy cream. Continue mixing until smooth, adjusting with additional cream to reach your desired consistency, and gently stir in the sprinkles.
Frost the cake: Once the cake has completely cooled, frost it using an offset spatula for ease. Top with more sprinkles for extra flair.
Store properly: Store the cake loosely covered at room temperature for up to 2 days, or refrigerate if you prefer.
Storing & Reheating
To keep your Homemade Funfetti Cake fresh, store it at room temperature covered loosely with foil or a cake dome for up to two days. If you’d like to extend its shelf life, refrigerate it in an airtight container for about a week. You can also freeze this cake for up to three months. To reheat, simply thaw it at room temperature and warm it in the oven at 350°F (175°C) for about 10-15 minutes. The texture may become a little denser after freezing, but a quick warm-up refreshes it beautifully.
Chef’s Helpful Tips
- Check ingredient temperatures: Make sure your eggs are at room temperature, while the butter is soft but not melting for the best emulsion.
- Don’t overmix: When combining wet and dry ingredients, mix just until combined to avoid dense cake.
- Cooling time matters: Make sure your cake cools completely before frosting to maintain the freshness of the frosting.
- Sprinkle types: Use jimmies for better results, as nonpareils tend to bleed color into the batter.
- Experiment with flavors: Feel free to add almond extract or citrus zest for a tasty twist.
Homemade Funfetti Cake not only brings joy through its colorful appearance but also delights taste buds with its fluffy texture and sweet flavor. Perfect for celebrations or just a little pick-me-up, it invites creativity. Whether it’s an extra sprinkle of joy or a festive decoration atop, feel free to make it your own. Gather your loved ones, bake this cake, and enjoy a slice (or more!) of happiness.

Recipe FAQs
Can I make this cake in advance?
Absolutely! You can bake the cake a day ahead and keep it tightly wrapped at room temperature. Just remember to frost it the day you plan to serve.
What can I substitute if I don’t have buttermilk?
If buttermilk is not on hand, you can create a quick substitute by adding a tablespoon of white vinegar or lemon juice to a cup of milk. Let it sit for about five minutes to curdle before using.
Can I turn this into cupcakes?
Definitely! This recipe can easily be transformed into 24 funfetti cupcakes. Just fill the cupcake liners about two-thirds full and bake for 18-20 minutes.
How should I store any leftover cake?
Store leftover homemade Funfetti Cake at room temperature in an airtight container for up to two days or in the refrigerator for about a week. If you freeze it, wrap it well to maintain quality and freshness for up to three months.
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📖 Recipe Card

Homemade Funfetti Cake
- 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
Description
This Homemade Funfetti Cake delights with its colorful sprinkles and rich flavor. Easy to make and perfect for celebrations, it promises a sweet experience for all!
Ingredients
- 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
Instructions
- Preheat the oven to 350°F and grease a 9×13-inch baking pan.
- In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
- In a large bowl, beat the melted butter and sugar together on medium speed until smooth. Add in eggs one at a time and then mix in vanilla extract.
- Alternately add the buttermilk and the dry ingredients to the butter mixture, mixing on medium-high speed, starting and finishing with buttermilk. Mix until just combined and stir in 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, cream the softened butter with a mixer. Gradually add powdered sugar until a crumbly texture forms, then mix in vanilla and salt. Add heavy cream to achieve desired consistency and fold in sprinkles.
- Frost the cooled cake and top with additional sprinkles. Use an offset spatula for easy frosting. Store covered for up to 2 days.
- This batter can also be made into 24 cupcakes, two 9-inch rounds, or three 8-inch rounds.
Notes
Ensure all ingredients are at room temperature for best results.
Alternate baking pans may affect cook time; check for doneness regularly.
Store leftover cake in an airtight container to maintain freshness.
Nutrition
- Serving Size: 1 slice
- Calories: 350
- Sugar: 30g
- Sodium: 220mg
- Fat: 16g
- Saturated Fat: 10g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 50g
- Fiber: 0g
- Protein: 3g
- Cholesterol: 45mg
