These soft, thick, and chewy funfetti blondies can be made in one bowl…no mixer required! Filled with rainbow sprinkles and white chocolate chips, these sweet & salty bars are always a crowd favorite.
Why I love these funfetti blondies:
- Thick & chewy: These are everything you want from a cookie bar; thick, soft, chewy, and packed with a sweet & salty flavor!
- One bowl, no mixer required! Because we’re using melted butter, no mixer is required to make these funfetti blondies! If you do use a mixer, be sure to only mix until the ingredients are incorporated; overmixing will result in a more cake-like texture.
- Made in 9×13 pan: After developing my chewy funfetti cookie cake, I knew I needed to try them thicker in a 9×13 pan! These would even be perfect to make as a rectangle cake by piping a border of the frosting from my cookie cake recipe!
Ingredient Notes & Tips
- Use a higher-quality white chocolate chip: While I use generic chips all the time, white chocolate chips are one that I don’t like to cut corners on. The generic ones often taste waxy and artificial, which will affect the overall flavor of your cookie (trust me, I tried it and it was not good). I use Ghiradelli or Nestle white chocolate chips, which both have a good flavor.
- Sprinkles: Jimmies sprinkles work best; avoid anything with pearls as they will bleed and be too crunchy. Also, test out the flavor and only use sprinkles that you like the taste of. Some sprinkles have a fake, bad flavor and will ruin the flavor of the cookie.
- Don’t overbake: The trick to a soft, chewy texture is to only bake until the edges are lightly brown. You also want to allow the bars to fully cool before slicing (they can look doughy when warm).
- Mix by hand: Because this uses melted butter, you don’t need a high-powered mixer. The trick to a chewy texture is to just mix the ingredients until incorporated!
Thick & Chewy Funfetti Blondies
These soft, thick, and chewy funfetti blondies can be made in one bowl…no mixer required! Filled with rainbow sprinkles and white chocolate chips, these sweet & salty bars are always a crowd-favorite.
* If viewing on TikTok, be sure to click to the blog post for accurate baking instructions (this app preview doesn't always pull in the correct baking time).
Ingredients
- 1 cup unsalted butter (not margarine) you will be melting this
- 1 cup light brown sugar
- 1 cup granulated sugar
- 2 large eggs
- 1 tablespoon vanilla extract
- 1 ½ teaspoons salt If using unsalted butter, don't skip the salt!
- 1 teaspoon baking powder
- 1 tablespoon cornstarch
- 2 ½ cup all-purpose flour
- 1 cup white chocolate chips (+ more for topping) I highly recommend Ghiradelli or other higher quality brand
- 1/2 cup rainbow sprinkles (+ more for topping)
Before you begin! If you make this, will you do me a huge favor and leave a review and rating letting me know how you liked this recipe? This helps my small business thrive so I can continue providing free recipes and high-quality content for you.
Instructions
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Preheat oven to 350ºF. While preheating, be sure to read tips & tricks in post above for recipe success.
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Warm the butter in a microwave-safe bowl or saucepan until it’s just melted. If steaming, allow to cool for a few minutes before proceeding.
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In a large mixing bowl, combine the butter with the brown sugar and granulated sugar. Stir until combined. (I recommend mixing this by hand rather than a mixer.)
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Stir in eggs and vanilla extract, followed by the baking powder and salt.
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Mix in cornstarch and flour, followed by the white chocolate chips & rainbow sprinkles. Mix the dough until well-combined. This is a "wetter" dough but if it is runny, let it sit and firm up for a few minutes (or add 1-2 tablespoons more flour).
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Grease and line a 9×13 light-metal pan with parchment paper. Spread dough into an even layer in pan. If desired, press some extra sprinkles on top for added presentation.
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Bake for 28-32 minutes, or until edges are slightly golden brown. The center may look slightly underbaked but the residual heat from the pan will continue to bake the bars even after you take it out of the oven.
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Cool completely before slicing into 12-24 squares.
Last Step! Please leave a review and rating letting me know how you liked this recipe! This helps my small business thrive so I can continue providing free recipes and high-quality content for you.
Recipe Notes
White Chocolate Chips: While I use generic chips all the time, white chocolate chips are one that I don’t like to cut corners on. The generic ones often taste waxy and artificial, which will affect the overall flavor of you cookie (trust me, I tried it and it was not good). I use Ghiradelli white chocolate chips, which are well worth the extra dollar!
Sprinkles: Jimmies sprinkles work best; avoid anything with pearls as they will bleed and be too crunchy. Also, test out the flavor and only use sprinkles that you like the taste of. Some sprinkles have a fake, bad flavor and will ruin the flavor of the cookie (they might be fine for topping in small amounts but not to put in the dough!).
Mari says
Recipe is delicious & was a quick dessert for the holiday company to snack on!
Anna says
This recipe is so delicious!! It has the absolute perfect mix of salty and sweet, and it is a huge hit whenever I make it! Also, I am someone who usually doubles vanilla extract, but this recipe doesn’t need it. It’s obviously written by a vanilla lover. :) Highly recommend!
Melissa says
Lol, glad to hear someone loves the vanilla flavor as much as I do! :) So glad you enjoy this recipe so much, Anna! Thank you so much for taking the time to leave a review, I really appreciate it!
Paige says
This recipe was absolutely delicious! Such a yummy flavor, so chewy, and the directions were easy to follow with accessible ingredients. I will DEFINITELY be making again and bringing to pot lucks in the future!
Melissa says
I appreciate you taking the time to leave a review Paige.
I am so glad that you enjoyed the recipe.
Angela C says
100/10 These were amazing. I took some to work and I was asked to make more.
Melissa says
I am glad that you and your coworkers enjoyed them, Angela! Thank you for taking the time to leave a review!
Hannah S says
10/10. My son was so excited to make “sprinkle cookies”. Turned out better than I was hoping for!
Melissa says
So glad that you and your son enjoyed these Hannah! Thank you for making time to leave a revivew.