Cake Batter Blondies

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Cake Batter Blondies are chewy cookie bars with a birthday cake twist! Top them with a sweet cake batter frosting and sprinkles for an over-the-top fun dessert.

This Cake Batter Fudge has dry cake mix added in to give it a butter-rich, chewy texture. Or give our easy Cake Mix Cookies a try, they’re definitely a reader favorite!

Chewy and butter-rich Cake Batter Blondies are so easy to make! Don't forget to top them with the sweet cake batter frosting too for an over the top dessert!
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What are Blondies

Today’s recipe is like a yellow cake and blondies all in one!

Blondies are bars with a chewy, dense consistency that’s similar to brownies but without the chocolate. They’re usually flavored with plenty of vanilla and baked with mix-ins ranging from chocolate chips to nuts.

I have so many blondie recipes on this site for different cravings and occasions. It’s too hard to pick a favorite!

Today’s Cake Batter Blondies recipe is for those times when you can’t decide between cake or blondies. With rainbow sprinkles on top, they’re perfect for any kind of celebration!

Ingredient Notes

  • Brown sugar – This darker moister sugar is best for blondies with a rich flavor and golden brown color.
  • Butter – Use melted butter for chewiest blondies!
  • Yellow cake mix – Adds the butter-rich flavor you recognize in your favorite birthday cakes! You will use some in the blondie batter and another 2 tablespoons in the frosting.
  • Vanilla – A good quality pure vanilla extract goes a long way in blondie recipes. I love baking with homemade vanilla extract whenever possible.
  • Sprinkles – You can use nonpareils, jimmies or any other kind of colorful sprinkles you like in these cake batter blondies.
Chewy and butter-rich Cake Batter Blondies are so easy to make! Don't forget to top them with the sweet cake batter frosting too for an over the top dessert!

Tips and Tricks

  • Do not over mix. I prefer to mix the batter by hand for this recipe, especially after adding the dry ingredients. Over blending can make blondies tough.
  • Line your pan with parchment paper. This makes it so much easier to remove the blondies from the pan.
  • Let blondies cool before frosting. If you rush and add frosting to warm blondies you’ll have a gooey sticky mess on your hands. I speak from experience!
  • You will not use a full box of cake mix. This recipe uses just over half a cup of mix. Store the leftovers in an ziploc bag to use for future baking.
Chewy and butter-rich Cake Batter Blondies are so easy to make! Don't forget to top them with the sweet cake batter frosting too for an over the top dessert!

Recipe FAQs

Are these blondies cake-y?

These blondies have a cake like flavor but should not be cakey in their consistency. They are fudgy and chewy when made as directed. If yours are cakey it’s possible you overmixed the batter or overbaked the blondies.

How can I tell when blondies are done baking?

Blondies are ready to come out of the oven when the edges are set but the middle still looks soft. In my oven, this takes about 22 minutes. The centers will continue to firm up slightly as the blondies cool.

What’s the best way to cut blondies?

I recommend cutting blondie bars with a sharp, non-serated knife. Blondies are a littler easier to cut neatly than brownies, but make sure to wipe the knife clean between cuts for perfect edges.

How do I store homemade blondies?

These cake batter blondies can be stored covered at room temperature for up to a week. Blondies freeze well too. Just keep in mind that the sprinkles in this recipe can “bleed” color a bit as the blondies thaw.

Chewy and butter-rich Cake Batter Blondies are so easy to make! Don't forget to top them with the sweet cake batter frosting too for an over the top dessert!

More Easy Dessert Bars

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Cake Batter Blondies

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By: Aimee
Chewy and butter-rich Cake Batter Blondies are so easy to make! Don’t forget to top them with the sweet cake batter frosting too for an over the top dessert!
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Servings: 16 bars

Ingredients 

FOR THE BLONDIES:

  • 1 cup light brown sugar packed
  • ½ cup unsalted butter melted
  • 1 large egg
  • 1 teaspoon vanilla extract
  • ¼ teaspoon kosher salt
  • ¾ cup all-purpose flour
  • ½ cup dry yellow cake mix
  • ¼ cup sprinkles

FOR THE FROSTING:

  • ¼ cup unsalted butter softened
  • 2 Tablespoons milk
  • 2 cups powdered sugar
  • 2 Tablespoons dry yellow cake mix
  • 2 Tablespoons sprinkles
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Instructions 

  • Preheat oven to 350°F. Line an 8-inch square baking dish with parchment paper. Set aside.
  • In a large mixing bowl, combine brown sugar with melted butter. Add in egg, vanilla and salt. Mix until blended. Add in flour and cake mix, stirring JUST until combined. Fold in sprinkles.
  • Pour batter into prepared baking dish. Bake for 22-25 minutes. Remove from oven and cool completely.
  • While blondies are cooling, prepare the frosting. Beat butter with milk, powdered sugar, and yellow cake mix. Once smooth, spread over cooled blondies. Add sprinkles. (I used a combination of fun sprinkles and rainbow chips). ENJOY!

Notes

  • Do not over mix. I prefer to mix the batter by hand for this recipe, especially after adding the dry ingredients. Over blending can make blondies tough.
  • Line your pan with parchment paper. This makes it so much easier to remove the blondies from the pan.
  • Let blondies cool before frosting. If you rush and add frosting to warm blondies you’ll have a gooey sticky mess on your hands. I speak from experience!
  • You will not use a full box of cake mix. This recipe uses just over half a cup of mix. Store the leftovers in an ziploc bag to use for future baking.

Nutrition

Calories: 240kcal, Carbohydrates: 36g, Protein: 1g, Fat: 10g, Saturated Fat: 6g, Polyunsaturated Fat: 4g, Cholesterol: 35mg, Sodium: 81mg, Sugar: 29g
Course: Cookies
Cuisine: American
Did you make this recipe?Mention @shugarysweets or tag #shugarysweets!

Love birthday cake? These cake batter blondies may just be your new favorite dessert bar!

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About Aimee

Aimee is a dessert lover (specifically rice krispie treats), workout enthusiast, self-taught foodie, and recipe creator.

Learn more about Aimee.

Affiliate Disclosure:**There may be affiliate links in this post! By clicking on them, or purchasing recommended items I may receive a small compensation. However, I only recommend products I love! Thank you for supporting Shugary Sweets! See my disclosure policy for more info**

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Posted on July 11, 2016

Comments & Reviews

  1. Hahahaha!  That 10 for 10 sale always gets me too!  Of course I need 10 box mixes or goldfish bags!!! And of course I need more blondies in my life!  Love the cake batter version!

  2. These are so fun! I love the frosting includes the cake batter – yum all the way through!

  3. Oh Aimee, a thousand times yes! I love anything with cake batter and sprinkles! Pinned! 

  4. These cake batter blondies look so chewy and delicious! I love all those sprinkles in them and on top, such a fun treat!

  5. Oh YUM! These Blondies look amazing, I think I would have a difficult time stopping with one or two!

  6. I often buy a lot I don’t need when grocery shopping too…especially when it comes to the baking aisle! These blondies look SO good! I love the cake batter flavor!

  7. Oh my goodness, I buy EVERYTHING at the store. I always feel like I can use them whenever, and it’s such a great thing to be stocked, right? I’m not a grocery store shopping addict, right?!
    These look incredible. The love is there!

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