Mom's Best Recipes
Recipe

Funfetti Cake

Soft vanilla layers loaded with sprinkles and topped with fluffy vanilla buttercream for maximum party-in-a-slice vibes.

Author By Matt Campbell
4.8
A tall slice of homemade Funfetti cake with rainbow sprinkles baked into the crumb and fluffy vanilla buttercream, plated on a white dessert plate on a bright kitchen table

Funfetti cake is the culinary equivalent of putting on your favorite playlist and suddenly remembering you have hips. It is cheerful, a little chaotic, and somehow makes a random Tuesday feel like it has balloons attached.

This is a from-scratch Funfetti cake that bakes up soft and fluffy with real vanilla flavor, not just sugar-with-a-side-of-color. The sprinkles stay bright, the layers slice clean, and the buttercream is the kind you will “accidentally” eat off the spatula while you pretend you are cleaning.

Flour, sugar, butter, eggs, milk, vanilla, baking powder, and rainbow sprinkles arranged on a light kitchen counter with measuring cups and bowls

Why It Works

  • Reverse creaming for a plush crumb: Mixing butter into the dry ingredients first coats the flour, which helps keep the cake tender and tight in the best way.
  • Egg whites keep it bright: Using mostly whites makes a whiter cake base so the sprinkles pop and lets the vanilla flavor shine.
  • Sprinkles that behave: The right kind of sprinkles (jimmies) hold color better than nonpareils, so you get confetti instead of sad tie-dye streaks.
  • Moisture without heaviness: Whole milk plus a little sour cream keeps the cake soft for days without turning it dense.

Pairs Well With

Storage Tips

Room temperature: If your kitchen is cool, store the frosted cake covered (cake dome or gently tented plastic wrap) for up to 2 days.

Refrigerator: For longer storage, refrigerate covered for up to 5 days. For best texture and flavor, it is at its peak within 3 to 4 days. Let slices sit at room temp for 30 to 60 minutes before eating so the buttercream goes silky again.

Freezer: Freeze unfrosted layers wrapped tightly in plastic wrap and foil for up to 2 months. Thaw still wrapped at room temp, then frost. You can also freeze individual frosted slices on a sheet pan until firm, then wrap and freeze for quick dessert emergencies.

Common Questions

What sprinkles work best for Funfetti cake?

Use rainbow jimmies. They hold their color better in batter. Avoid tiny round nonpareils in the cake batter because they tend to bleed and streak.

Why did my sprinkles sink?

Usually the batter was a bit too loose or the sprinkles were heavy. Use jimmies, and fold them in at the very end. Also make sure your oven is fully preheated so the cake sets quickly.

How do I stop sprinkle colors from bleeding?

Start with jimmies, fold them in gently at the very end, and do not overmix once they are in. If your kitchen is very warm and the batter feels extra soft, a quick 10 minute chill can help the sprinkles behave.

Why is my cake dry or dense?

The usual suspects are overbaking, overmixing after the liquids go in, or too much flour. Measure flour by spooning and leveling (or use a scale), keep ingredients at room temp, and pull the cake when a toothpick shows a few moist crumbs or the center hits about 200 to 205°F.

Can I make this as cupcakes?

Yes. Fill liners about 2/3 full and bake at 350°F for 18 to 22 minutes. Cool completely before frosting.

Can I bake it in a 9x13 pan?

You can. Bake at 350°F for about 30 to 38 minutes, checking early. The top should spring back lightly and a toothpick should come out with a few moist crumbs.

How do I get flat cake layers?

Use cake strips if you have them, and do not overmix once the liquids go in. You can also trim domes with a serrated knife once fully cooled.

I used to think Funfetti was strictly a box-mix situation, like it came with an unspoken rule that you must eat it at a kid’s birthday party while standing near the kitchen doorway. Then I made it from scratch and realized what I had been missing: actual vanilla flavor, a crumb that stays soft, and sprinkles that feel like a choice instead of a shortcut.

This is the cake I make when I want something joyful but not fussy. It is the one that gets sliced “just to taste” and somehow turns into a second slice with zero regrets.