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.
[feast_advanced_jump_to]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!
Why You'll Love Birthday Cake Banana Bread
- Fun way to use overripe bananas. This recipe turns that spotty fruit into a treat that everyone will get excited about.
- Birthday cake flavor in every bite. Cake batter extract is the secret ingredient to give the baked good a classic cake taste.
- Loaded with sprinkles. The rainbow colors add fun, making this sweet bread perfect for a party or special occasion.
- Frosting on top because why not. A sweet glaze transforms this from banana loaf into a "cake" you can eat for breakfast.
- Great for any occasion. It's perfect for birthdays, brunch, or just because your bananas are silently judging you from the counter.



















