Birthday Cake Banana Bread

Colorful rainbow sprinkles and a sweet glaze make this soft birthday cake banana bread a fun treat. It is perfect for birthdays, brunch, or any special occasion.

If you love sprinkles, check out our Funfetti cinnamon rolls and Funfetti bundt cake.

The post for Funfetti banana bread was first published in January 2020. It was updated and republished in January 2026.

Jump to:

• Why You'll Love Birthday Cake Banana Bread
• Main Ingredients
• How To Make Funfetti Banana Bread
• Storing and Freezing
• BruCrew Tips
• More Banana Bread Recipes
• Recipe

Lately, I have been really into making sweet breads, especially banana bread. A few weeks ago, I bought some bananas. I couldn't wait for them to ripen so I could try different banana bread recipes.

This sour cream banana bread is my go-to recipe when I want to try something new. It's soft, moist, and incredibly easy to customize with mix-ins and extracts. This time, I used cake batter extract and rainbow sprinkles to give it a classic Funfetti cake flavor.

Now let's talk about the glaze. Is it optional? Technically, yes. Is it necessary? Absolutely! After all, this is birthday cake banana bread.

It's like the banana loaf, and Funfetti cake had a baby. Honestly, now I want to add sprinkles to every loaf of sweet bread I make!

Main Ingredients

Here are the key ingredients you will need to make funfetti banana bread with frosting. Scroll to the bottom of the post for the printable recipe card with the complete list of ingredients and amounts.

• Unsalted Butter: Let the butter sit at room temperature until softened. You should be able to cream the butter and sugar easily.
• Granulated Sugar: This quick bread recipe uses white sugar to sweeten the batter.
• Large Eggs: The liquid in the batter.
• Sour Cream: Adds moisture to the batter, resulting in a soft, moist texture. Plain Greek yogurt can also be used.
• Cake Batter Extract: I used McCormick's Cake Batter extract to give the bread a cake flavor. If you cannot find it, use almond and vanilla extract.
• Bananas: The riper the bananas, the better natural sweetness they give the bread. Check out our tips on how to quickly ripen bananas if yours are not ready yet.
• All Purpose Flour: Gives the batter structure. For best results, spoon and sweep or use a kitchen scale.
• Baking Soda: Provides lift in the batter while baking.
• Rainbow Sprinkles: Use colorful jimmies because they hold their shape and won't bleed into the batter.

How To Make Funfetti Banana Bread

Follow our simple steps to turn ripe bananas into a tasty loaf of banana bread. Add sprinkles and frosting for extra fun!

1. Beat the softened butter and sugar in a large bowl until light and fluffy. Add the extract, eggs, sour cream, and mashed bananas, and beat again.
2. Slowly add the dry ingredients to the butter mixture.
3. Gently fold in the sprinkles, then pour the batter into a prepared loaf pan and bake.
4. Once the bread is cool, spread the glaze on top and decorate with sprinkles.

Storing and Freezing

On the Counter: Store the frosted banana bread in an airtight container at room temperature for 3-4 days.

In the Freezer: Wrap the entire loaf or individual slices in plastic wrap. Then place them in a freezer-safe bag or container. Store it in the freezer for 2-3 months. Thaw before serving.

More Banana Bread Recipes

• Tropical Banana Bread
• Mocha Banana Bread
• Cherry Chocolate Chip Banana Bread
• Almond Joy Banana Bread
• Maple Pecan Banana Bread

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