Birthday Cake Blondies (Cake Batter)

If you like the taste of birthday cake, you’re going to love these easy Birthday Cake Blondies! Next time, try our Cake Batter Dip (Funfetti Dip).

I was browsing through family favorite recipes that would be perfect for spring and came across my Grandma’s Easy Cake Batter Blondie Bar recipe. I just love this recipe and I am so glad I came across it to share with all of you.

I am 8 months pregnant and I am constantly searching for simple and easy recipes to make that don’t take a lot of time in the kitchen and this recipe was perfect. If you love the taste of cake batter, then you will just love these cake batter blondie bars.

🧂 Ingredients

• yellow cake mix
• vegetable oil
• egg
• milk
• sprinkles
• white chocolate chips

Equipment

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• 9×9 OR 8×8 square baking pan
• Measuring Spoons
• Liquid Measuring Cup
• Dry Measuring Cups
• Stand Mixer – or a hand mixer

🔪Instructions

This is meant to be a brief overview of the recipe. For step-by-step instructions and a full printable recipe card with ingredients, please scroll down to the teal box below or Jump to Recipe.

1. Preheat your oven to 350 degrees F.
2. Combine yellow cake mix, vegetable oil, egg, milk, sprinkles and white chocolate chips.
3. Stir batter until combined (batter will be thick).
4. Place batter in a greased 8X8 pan.
5. Bake for 18-20 minutes.
6. Let blondie bars cool for 30 minutes before serving.

⏲️ Storage

Blondies will dry out faster when they are cut. So, if you’re making these ahead of time, I suggest not cutting them until the day of your party. These cake batter blondies are best when kept in an airtight container and eaten within the first 1-2 days. However, if they are uncut, you can stretch it to 3-4 days.

Alternatively, you can make these and freeze them. Wrap the whole block of blondies in plastic wrap, then slide them into a freezer bag (usually I cut the block in half so I have more manageable sections.) Label the bag and store in the freezer for up to 3 months.

💭 Frequently Asked Questions

Here are some questions (and answers!) readers often ask about this recipe.

📖 Variations

Holiday party? Baby shower? You can easily switch out the sprinkles to match any party theme or holiday. For example:

• black and orange for Halloween
• red, white and green for Christmastime
• green and white for St. Patrick’s day (perfect for your dessert table next to the Minty Shamrock CheeseBall)
• pink and blue for a gender reveal party
• red, white and blue for 4th of July, Memorial day or Labor day picnic
• pink, purple and teal for a unicorn party (serve alongside this Unicorn Popcorn)

🍴 Serving Suggestions

These are great for parties and potlucks but all bake sales, or even just as a little lunch box treat!

If you want to get really fancy, you could pipe a little swirl of buttercream frosting right on top of each blondie bar.

😋 Similar Recipes

If you love all things birthday cake flavor, definitely check out my recipe for Easy Cake Batter Dip. Here are a few more dessert bar recipes you might enjoy:

📋 Birthday Cake Blondies

Not ready to make these tasty little bars yet? Don’t forget to pin the fantastic recipe for later! When you do make it, please be sure to tag me on Instagram @jugglingactmama or #jugglingactmama – I’d love to see your pictures! And finally, if you get a chance, please comment and leave me a ⭐⭐⭐⭐⭐ rating below!

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