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Cookie and cream cake batter blondie on white wood with oreos and sprinkels
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5 from 2 votes

Cookies & Cream Cake Batter Blondies

These Cookies & Cream Cake Batter Blondies are amazing! Soft, chewy, buttery and fudgy, they taste just like Funfetti cake batter and are studded with gooey pieces of Oreo cookies swirled throughout!
Prep Time10 minutes
Cook Time35 minutes
Total Time45 minutes
Course: Bars, Dessert
Cuisine: American, Dessert
Servings: 12

Ingredients

  • ½ cup (1 stick) unsalted butter cubed
  • 8 ounces (or two 4-ounce bars) white chocolate bars roughly chopped
  • ½ cup granulated white sugar
  • ¼ cup light brown sugar
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • ¼ teaspoon salt
  • cups all-purpose flour
  • 1/3 cup rainbow jimmie sprinkles
  • 1/2 cup Oreo cookies roughly chopped in bite-size pieces

Instructions

  • Preheat oven to 350° degrees F. Line an 8x8 light metal square baking pan with foil, extending the sides of the foil over the edges of the pan. Spray the foil liberally with cooking spray; set aside.
  • In a large microwave-safe bowl, add in the cubed butter and chopped white chocolate bars. Microwave on HIGH power for 20 seconds. Stir, then microwave for another 20 seconds, stirring between interval bursts of 20 seconds or until mixture is smooth and melted cohesively. It is very important to melt the white chocolate slowly on smaller intervals since it is prone to scorching. Once mixture is melted and smooth, let cool for about 5 minutes.
  • Add in the sugars, eggs, and vanilla and stir with a rubber spatula to combine. Lastly, stir in the salt and flour until just combined. Fold in the rainbow jimmie sprinkles and the chopped Oreo cookie pieces.
  • Spread the batter evenly into the prepared pan and smooth out the top. Bake for 25-35 minutes or until light golden brown and a toothpick inserted near the center comes out clean. Cool completely before cutting into bars.

Notes

I recommend using a light metal baking pan for this recipe for most consistent results. If you only have a glass pan, please note that the bars may take longer to cook in the center. If you're using a dark metal pan, please note that the bars may cook faster and to check on the bars sooner.