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Oreo Cookie Bars

Chewy Oreo Cookie Bars are buttery, rich dessert squares packed with chunks of Oreo cookies and creamy white chocolate. They’re easy to make, need no mixer, and bake into golden, gooey perfection in under 30 minutes.

Ingredients
  

  • ½ cup plus 2 tablespoons butter melted
  • 1 whole egg
  • ½ cup brown sugar
  • 2 tablespoons granulated sugar
  • ¼ teaspoon vanilla extract
  • 1 cup all-purpose flour
  • ½ teaspoon baking powder
  • ½ teaspoon baking soda
  • ½ cup white chocolate chips
  • 15 –18 Oreo cookies crushed into large and small pieces
  • 1 Hershey’s Cookies ’N’ Creme Bar chopped (optional)

Instructions
 

  • Preheat the oven to 350°F (175°C) and line an 8×8-inch or 9×9-inch baking pan with parchment paper or grease it lightly.
  • Whisk melted butter, egg, brown sugar, granulated sugar, and vanilla until smooth and glossy.
  • In another bowl, mix flour, baking powder, and baking soda, then stir into the wet mixture until just combined.
  • Fold in crushed Oreos, white chocolate chips, and chopped Hershey’s bar, saving a few for topping.
  • Spread the batter evenly in the pan, sprinkle the reserved toppings, and bake for 20–23 minutes until golden at the edges and slightly soft in the center.
  • Cool for 5 minutes, lift out, and transfer to a wire rack. Once cooled, slice into 16 squares.