Soft & Moist Funfetti Cake | Colorful, Fluffy & Celebration-Ready

🎉 Introduction

Nothing says celebration quite like a Funfetti Cake—soft, moist, buttery layers speckled with colorful sprinkles that bring instant joy to any occasion. It’s the kind of dessert that feels nostalgic yet timeless, perfect for birthdays, baby showers, graduations, or just because you’re in the mood for something cheerful.

This Soft & Moist Funfetti Cake is more than just a pretty face—it’s rich with vanilla flavor, has a perfectly tender crumb thanks to cake flour and sour cream, and stays moist for days. The secret lies in a combination of butter for richness, vegetable oil for moisture, and just the right balance of leavening to give it that bakery-style fluff.

And then, of course, there are the rainbow jimmies sprinkles—those little bursts of color that bake beautifully without bleeding, creating picture-perfect slices. Top it all off with creamy vanilla buttercream, and you’ve got a cake that makes everyone at the table smile.

🧰 Equipment Needed

For this cake, you’ll need:

• Mixing bowls (large, medium, and small)
• Measuring cups and spoons
• Electric mixer (handheld or stand mixer)
• Rubber spatula
• Whisk
• Three 8-inch round cake pans (or two 9-inch pans)
• Parchment paper (for lining pans)
• Cooling racks
• Offset spatula (for frosting)
• Cake turntable (optional, for even frosting)

🛒 Ingredients

Fresh Products:

• 4 large eggs

Culinary Aids & Spices:

• 2 teaspoons baking powder
• 1 teaspoon baking soda
• 3 cups cake flour
• 1¾ cups granulated sugar
• 6 cups powdered sugar (for frosting)
• ¾ cup rainbow jimmies sprinkles
• 1 teaspoon salt
• 1⅔ tablespoons pure vanilla extract

Oils & Vinegars:

• ⅓ cup vegetable oil
• 1 teaspoon white vinegar

Dairy Products:

• 36 tablespoons unsalted butter, softened (2¼ cups, divided for batter and frosting)
• 1 cup full-fat sour cream
• 1 cup whole milk

👩‍🍳 Directions

Step 1: Prepare the Pans and Oven

• Preheat your oven to 350°F (175°C).
• Grease and line three 8-inch round cake pans with parchment paper.

Step 2: Mix Dry Ingredients

• In a medium bowl, whisk together:
  • 3 cups cake flour
  • 2 teaspoons baking powder
  • 1 teaspoon baking soda
  • 1 teaspoon salt

Step 3: Cream Butter, Oil & Sugar

• In a large mixing bowl, beat 1 cup butter and 1¾ cups granulated sugar until pale and fluffy (about 3–4 minutes).
• Add the vegetable oil and mix well.

Step 4: Add Eggs and Vanilla

• Beat in the eggs one at a time, mixing well after each addition.
• Stir in 1 tablespoon vanilla extract.

Step 5: Add Sour Cream and Vinegar

• Mix in the sour cream and white vinegar until combined.

Step 6: Alternate Wet and Dry

• Add the flour mixture in three additions, alternating with the milk in two additions, starting and ending with flour.
• Mix gently until just combined.

Step 7: Fold in Sprinkles

• Gently fold in ¾ cup rainbow jimmies sprinkles, being careful not to overmix (to avoid color bleeding).

Step 8: Bake the Cakes

• Divide batter evenly among the prepared pans.
• Bake for 22–26 minutes, or until a toothpick inserted into the center comes out clean.
• Cool in the pans for 10 minutes, then transfer to wire racks to cool completely.

Make the Vanilla Buttercream Frosting

Step 9: Beat the Butter

• In a large bowl, beat 1¼ cups butter until creamy.

Step 10: Add Powdered Sugar

• Gradually mix in 6 cups powdered sugar on low speed until combined.

Step 11: Add Vanilla & Milk

• Stir in ⅔ tablespoon vanilla extract and 2–4 tablespoons milk until frosting is light and spreadable.

Step 12: Assemble the Cake

1. Place one cake layer on a serving plate or cake stand.
2. Spread a generous layer of buttercream on top.
3. Add the second layer, frost, then add the third.
4. Frost the entire cake with an even coat.
5. Decorate with extra sprinkles along the top edge and base.

🍽️ Servings & Timing

• Servings: 12–14 slices
• Prep Time: 25 minutes
• Bake Time: 22–26 minutes
• Frosting & Assembly: 20 minutes
• Total Time: ~1 hour 10 minutes

🧊 Storage & Reheating

Room Temperature:

• Store in an airtight cake container for up to 2 days.

Refrigerator:

• Keeps for 4–5 days. Bring to room temperature before serving.

Freezer:

• Freeze unfrosted layers for up to 3 months. Thaw overnight in the fridge before frosting.

Reheating:

• Not recommended for frosted cakes. Serve at room temperature for best texture.

🥄 Variations

• Chocolate Funfetti Cake: Replace ½ cup cake flour with cocoa powder.
• Pastel Funfetti Cake: Use pastel-colored sprinkles for a softer look.
• Lemon Vanilla Funfetti: Add 1 tablespoon lemon zest for a citrus twist.
• Whipped Cream Frosting: Swap buttercream for a lighter whipped topping.
• Cupcake Version: Bake in lined muffin tins for 18–20 minutes.
• Ombre Frosting: Tint frosting in gradient shades for a stunning effect.
• Extra Sprinkle Surprise: Add more sprinkles between cake layers for a fun reveal.
• Gluten-Free Funfetti Cake: Use a 1:1 gluten-free flour blend.

❓ 10 FAQs

1. Can I use all-purpose flour instead of cake flour?

Yes, but cake flour gives a softer texture. If using all-purpose, remove 2 tablespoons per cup and replace with cornstarch.

2. How do I stop sprinkles from bleeding?

Use rainbow jimmies, not nonpareils, and fold them in gently at the end.

3. Can I use salted butter?

Yes, but reduce the added salt to a pinch.

4. Can I make this dairy-free?

Yes—use vegan butter, plant-based milk, and dairy-free sour cream.

5. Can I bake this in two pans?

Yes, but increase bake time slightly and slice each layer in half for four layers.

6. How do I get flat cake tops?

Use cake strips or trim the domes with a serrated knife.

7. Can I make this ahead?

Yes—bake the layers a day ahead and frost the next day.

8. Will the cake still be moist without sour cream?

It will still be good, but sour cream adds richness and tenderness.

9. Can I freeze a fully frosted Funfetti cake?

Yes—freeze uncovered until firm, then wrap and store for up to 1 month.

10. What’s the best frosting tip for decorating?

A large open star tip makes beautiful swirls for the top.

🏁 Conclusion

This Soft & Moist Funfetti Cake is everything a celebration cake should be—light, fluffy, full of vibrant sprinkles, and topped with creamy vanilla buttercream. It’s the kind of dessert that makes you feel like a kid again, no matter your age. Whether you’re baking it for a birthday, holiday, or just a random Tuesday, it’s guaranteed to bring joy to every slice.

Adam

Soft & Moist Funfetti Cake | Colorful, Fluffy & Celebration-Ready

Nothing says celebration quite like a Funfetti Cake—soft, moist, buttery layers speckled with colorful sprinkles that bring instant joy to any occasion. It’s the kind of dessert that feels nostalgic yet timeless, perfect for birthdays, baby showers, graduations, or just because you’re in the mood for something cheerful. This Soft & Moist Funfetti Cake is more than just a pretty face—it’s rich with vanilla flavor, has a perfectly tender crumb thanks to cake flour and sour cream, and stays moist for days. The secret lies in a combination of butter for richness, vegetable oil for moisture, and just the right balance of leavening to give it that bakery-style fluff. And then, of course, there are the rainbow jimmies sprinkles—those little bursts of color that bake beautifully without bleeding, creating picture-perfect slices. Top it all off with creamy vanilla buttercream, and you’ve got a cake that makes everyone at the table smile.

Print Recipe Pin Recipe

Prep Time 25 minutes mins

bake & Frosting & Assembly time 45 minutes mins

Total Time 1 hour hr 10 minutes mins

Servings: 14 slices

Ingredients Equipment Method Notes

Ingredients

  

Fresh Products:

• 4 large eggs

Culinary Aids & Spices:

• 2 teaspoons baking powder
• 1 teaspoon baking soda
• 3 cups cake flour
• 1¾ cups granulated sugar
• 6 cups powdered sugar for frosting
• ¾ cup rainbow jimmies sprinkles
• 1 teaspoon salt
• 1⅔ tablespoons pure vanilla extract

Oils & Vinegars:

• ⅓ cup vegetable oil
• 1 teaspoon white vinegar

Dairy Products:

• 36 tablespoons unsalted butter softened (2¼ cups, divided for batter and frosting)
• 1 cup full-fat sour cream
• 1 cup whole milk

✨ Kitchen Essentials You’ll Love

Quick picks I trust for better results, faster prep, and easier cleanup.

• 🍳

  Lodge Seasoned Cast Iron Skillet

  View ↗
• ⚡

  Instant Pot Duo Plus 9-in-1 Electric

  View ↗
• 🔥

  CHEFMAN Digital Air Fryer XL 10L

  View ↗

Disclosure: As an Amazon Associate, I earn from qualifying purchases at no extra cost to you.

Equipment

• For this cake, you’ll need:
• Mixing bowls (large, medium, and small)
• Measuring cups and spoons
• Electric mixer (handheld or stand mixer)
• Rubber spatula
• Whisk
• Three 8-inch round cake pans (or two 9-inch pans)
• Parchment paper (for lining pans)
• Cooling racks
• Offset spatula (for frosting)
• Cake turntable (optional, for even frosting)

Method

 

Step 1: Prepare the Pans and Oven

1. Preheat your oven to 350°F (175°C).
2. Grease and line three 8-inch round cake pans with parchment paper.

Step 2: Mix Dry Ingredients

1. In a medium bowl, whisk together:
2. 3 cups cake flour
3. 2 teaspoons baking powder
4. 1 teaspoon baking soda
5. 1 teaspoon salt

Step 3: Cream Butter, Oil & Sugar

1. In a large mixing bowl, beat 1 cup butter and 1¾ cups granulated sugar until pale and fluffy (about 3–4 minutes).
2. Add the vegetable oil and mix well.

Step 4: Add Eggs and Vanilla

1. Beat in the eggs one at a time, mixing well after each addition.
2. Stir in 1 tablespoon vanilla extract.

Step 5: Add Sour Cream and Vinegar

1. Mix in the sour cream and white vinegar until combined.

Step 6: Alternate Wet and Dry

1. Add the flour mixture in three additions, alternating with the milk in two additions, starting and ending with flour.
2. Mix gently until just combined.

Step 7: Fold in Sprinkles

1. Gently fold in ¾ cup rainbow jimmies sprinkles, being careful not to overmix (to avoid color bleeding).

Step 8: Bake the Cakes

1. Divide batter evenly among the prepared pans.
2. Bake for 22–26 minutes, or until a toothpick inserted into the center comes out clean.
3. Cool in the pans for 10 minutes, then transfer to wire racks to cool completely.
4. Make the Vanilla Buttercream Frosting

Step 9: Beat the Butter

1. In a large bowl, beat 1¼ cups butter until creamy.

Step 10: Add Powdered Sugar

1. Gradually mix in 6 cups powdered sugar on low speed until combined.

Step 11: Add Vanilla & Milk

1. Stir in ⅔ tablespoon vanilla extract and 2–4 tablespoons milk until frosting is light and spreadable.

Step 12: Assemble the Cake

1. Place one cake layer on a serving plate or cake stand.
2. Spread a generous layer of buttercream on top.
3. Add the second layer, frost, then add the third.
4. Frost the entire cake with an even coat.
5. Decorate with extra sprinkles along the top edge and base.

Notes

🧊 Storage & Reheating
Room Temperature:

Store in an airtight cake container for up to 2 days.

Refrigerator:

Keeps for 4–5 days. Bring to room temperature before serving.

Freezer:

Freeze unfrosted layers for up to 3 months. Thaw overnight in the fridge before frosting.

Reheating:

Not recommended for frosted cakes. Serve at room temperature for best texture.

🥄 Variations
Chocolate Funfetti Cake: Replace ½ cup cake flour with cocoa powder.

Pastel Funfetti Cake: Use pastel-colored sprinkles for a softer look.

Lemon Vanilla Funfetti: Add 1 tablespoon lemon zest for a citrus twist.

Whipped Cream Frosting: Swap buttercream for a lighter whipped topping.

Cupcake Version: Bake in lined muffin tins for 18–20 minutes.

Ombre Frosting: Tint frosting in gradient shades for a stunning effect.

Extra Sprinkle Surprise: Add more sprinkles between cake layers for a fun reveal.

Gluten-Free Funfetti Cake: Use a 1:1 gluten-free flour blend.

❓ 10 FAQs
1. Can I use all-purpose flour instead of cake flour?
Yes, but cake flour gives a softer texture. If using all-purpose, remove 2 tablespoons per cup and replace with cornstarch.

2. How do I stop sprinkles from bleeding?
Use rainbow jimmies, not nonpareils, and fold them in gently at the end.

3. Can I use salted butter?
Yes, but reduce the added salt to a pinch.

4. Can I make this dairy-free?
Yes—use vegan butter, plant-based milk, and dairy-free sour cream.

5. Can I bake this in two pans?
Yes, but increase bake time slightly and slice each layer in half for four layers.

6. How do I get flat cake tops?
Use cake strips or trim the domes with a serrated knife.

7. Can I make this ahead?
Yes—bake the layers a day ahead and frost the next day.

8. Will the cake still be moist without sour cream?
It will still be good, but sour cream adds richness and tenderness.

9. Can I freeze a fully frosted Funfetti cake?
Yes—freeze uncovered until firm, then wrap and store for up to 1 month.

10. What’s the best frosting tip for decorating?
A large open star tip makes beautiful swirls for the top.

🏁 Conclusion
This Soft & Moist Funfetti Cake is everything a celebration cake should be—light, fluffy, full of vibrant sprinkles, and topped with creamy vanilla buttercream. It’s the kind of dessert that makes you feel like a kid again, no matter your age. Whether you’re baking it for a birthday, holiday, or just a random Tuesday, it’s guaranteed to bring joy to every slice.