Funfetti Birthday Cake Granola Bars Recipe
Birthday Cake Granola Bars that taste just like funfetti cake! These easy homemade bars are made with oats, white chocolate, and rainbow sprinkles for a fun, sweet snack everyone will love.
If you love anything birthday cake flavored, these Funfetti Birthday Cake Granola bars are about to become your new favorite snack. They taste just like a slice of classic funfetti cake but come in the form of chewy, easy-to-make granola bars that are perfect for lunchboxes, after-school snacks, or a quick sweet treat.
These homemade Funfetti Birthday Cake Granola Bars combine hearty oats, creamy white chocolate, and colorful sprinkles to create that nostalgic birthday cake flavor everyone loves. Best of all, they’re incredibly simple to make and require just a handful of ingredients. I, Alyssa think of them as a fun twist on traditional granola bars with a festive upgrade.
Whether you’re making a batch for a birthday celebration, a kid-friendly snack, or just because you’re craving something sweet, these funfetti granola bars are guaranteed to bring a little extra joy to your day. Plus, did we mention that these are all mixed up in one bowl?! ONE BOWL.
Why You’ll Love These Birthday Cake Granola Bars
- Taste just like birthday cake in chewy granola bars form
- Easy to make with simple pantry ingredients
- Perfect no-bake snack for kids and adults
- Great for lunchboxes, road trips, or party treats
- Customizable with different sprinkles or mix-ins
If you enjoy playful desserts that showcase sprinkles like our funfetti cookie cake, chocolate funfetti popcorn, and birthday cheesecake, these Funfetti Birthday Cake Granola Bars fit right in with that fun, colorful vibe.
Equipment Needed
- 8” square baking dish
- Parchment paper
- Large microwavable mixing bowl
- Rubber spatula
Ingredients Needed
- Whole grain oats: Old-fashioned (rolled) oats are the ideal choice for baked granola bars because because they hold their shape, provide a hearty chewy texture, and prevent the bars from becoming mushy.
- Funfetti cake mix
- White chocolate chips
- Unsalted butter
- Honey
- Vanilla
- Rainbow sprinkles: Use rainbow jimmies sprinkles. They hold their color best and won’t bleed like nonpareils.
- Salt: Omit if you used salted butter
How to Make Funfetti Birthday Cake Granola Bars
Step 1 — Preheat the oven to 325°F.
Step 2 — Prepare the pan
Line an 8-inch square baking dish (or a 9-inch pan for slightly thinner bars) with parchment paper or foil and lightly coat with cooking spray. This will help the cake batter granola bars release easily after baking.
Step 3 — Melt the honey and butter
In a microwave-safe large bowl, combine the honey and butter. Microwave for 30 seconds, then stir well. Continue heating in 15–30 second intervals until the butter is fully melted and the mixture is smooth.
Step 4 — Mix the granola bar batter
Add the oats, funfetti cake mix, vanilla extract, and salt to the melted honey mixture. Stir until everything is evenly combined and the oats are fully coated. Then, gently fold in additional rainbow sprinkles.
Step 5 — Press the mixture into the pan
Transfer the mixture into the prepared baking dish. Using clean hands or the back of a spatula, press the mixture down firmly and evenly. This step helps the granola hold together once baked.
Step 6 — Bake the granola bars
Bake the pan for 18–20 minutes, or until the edges turn light golden brown. Remove from the oven and allow the granola bars to cool completely. For faster cooling, you can place the pan in the refrigerator.
Step 7 — Slice the birthday cake granola bars
Once the bars are fully cooled and set, lift them out of the pan using the parchment paper. Slice into bars about 1 to 1½ inches wide.
Step 8 — Drizzle with white chocolate
Melt the white chocolate chips until smooth. For an easy drizzle, place the chocolate chips in a small zip-top bag and microwave for 30–45 seconds, or until melted. Cut a tiny corner off the bag and drizzle the melted white chocolate over the birthday cake granola bars.
Allow the chocolate drizzle to set before serving.
Recipe Notes & Tips
- Gluten-free: While pure oats are naturally gluten-free, there is a chance of cross-contamination during farming and processing. So while safe for most with celiac disease, we recommend for shopping for oats with a certified gluten-free label. Bob Red Mills is a great option.
- Press the mixture firmly: Compact bars hold together better and won’t crumble when slicing.
- Let the bars fully chill: This step helps the drizzled granola bars set properly and makes them easier to cut.
- Storage and keep: Store in an airtight container for about 5–7 days at room temperature or up to 10 days in the refrigerator. To keep them from sticking together, place the bars in single layers with wax or parchment paper between each layer.
- Freezer: Birthday cake granola bars freeze very well. Store them in an airtight container or freezer bag for up to 2 months. Simply thaw at room temperature when you’re ready to enjoy them.
Variations for Birthday Cake Granola Bars
You can easily customize these birthday cake granola bars depending on your preferences.
- Add mini marshmallows for an extra sweet, cake-like texture.
- Swap white chocolate chips for yogurt chips for a slightly tangy flavor.
- Add vanilla protein powder to turn them into birthday cake protein granola bars.
More Fun Snack Ideas
We’d say to bring some to share with your classmates, friends, and coworkers, but these bars don’t stand a chance of making it outside your kitchen. However, if you muster up some willpower from deep within to resist eating them all, wrap the bars in wax paper, tie them with some baker’s twine and hand them out.
Trust us when we say that everyone’s day will be made! What do you guys like to snack on or enjoy for school snacks? We love apples with peanut butter, trail mix, chocolate-covered almonds, smoothies, dried fruit, crackers, and cheese….the list goes on and on! If these funfetti granola bars inspire you more on making more fun snacks, you might want to consider the related posts below –
- Easy Fairy Bread
- Chocolate Dipped Pretzels & Candy Apples
- Sweet Potato Nachos
- Top 3 Healthy Snacks Under 300 Calories
Equipment
- 8×8-inch baking dish
- Parchment paper
- Microwave-safe mixing bowl
- Rubber spatula
Ingredients
- 2 ¾ cup oats
- ¾ cup funfetti cake mix
- ¾ cup white chocolate chips
- ⅓ cup unsalted butter
- ½ cup honey
- 2 tsp vanilla
- 2-4 tbsp rainbow sprinkles
- 1 pinch salt omit if you used salted butter
Instructions
- Preheat oven to 325 degrees.
- Line an 8-inch square baking dish (or a 9-inch pan for slightly thinner bars) with parchment paper or foil and lightly coat with cooking spray.
- In a microwave-safe mixing bowl, combine the honey and butter. Microwave for 30 seconds, then stir well. Continue heating in 15–30 second intervals until the butter is fully melted and the mixture is smooth.
- Add the oats, funfetti cake mix, vanilla extract, and salt to the melted honey mixture. Stir until everything is evenly combined and the oats are fully coated. Lastly, gently fold in additional rainbow sprinkles.
- Transfer the mixture into the prepared baking dish. Using clean hands or the back of a spatula, press the mixture down firmly and evenly.
- Bake the pan for 18–20 minutes, or until the edges turn light golden brown. Remove from the oven and allow the granola bars to cool completely. For faster cooling, place the pan in the refrigerator.
- Once the bars are fully cooled and set, lift them out of the pan using the parchment paper. Slice into bars about 1 to 1½ inches wide.
- Melt the white chocolate chips until smooth. For an easy drizzle, place the chocolate chips in a small zip-top bag and microwave for 30–45 seconds, or until melted. Cut a tiny corner off the bag and drizzle the melted white chocolate over the birthday cake granola bars. Allow the chocolate drizzle to set before serving.
Nutrition
Notes
- Store in individual layers with wax paper between each one to prevent them from sticking together.
Don’t forget to share your Funfetti Birthday Cake Granola Bars with us on Instagram using the hashtag #sugarandclothloves. We always love seeing all of your creations! Looking for more quick and delicious recipes? You can find them all right here!
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Thanks for sharing! Does it keep long?
Hi Vanessa! That is a great question. They keep for about 5–7 days at room temperature or up to 10 days in the refrigerator. We updated the recipe post to include a notes and tips section with this info!
This looks so good! What a great combination of flavors!
Thank you, Suzanne! It’s been a hit with kids and adults!
These look amazing!!! I’m all for anything funfetti.
Carrie
http://www.wearwherewell.com
Right?! Pretty much sprinkle addicts around here.
yum!!
So glad you like the recipe!