Triple Decker Bars

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Indulge in the delightful layers of sweetness with Triple Decker Bars, a scrumptious treat that combines the rich flavors of brownies, blondies, and cookies into one irresistible dessert. Perfect for satisfying your sweet tooth cravings or sharing with friends and family.

Why Make This Recipe

If you’re a fan of layers upon layers of deliciousness, Triple Decker Bars are a must-try. With a fudgy brownie base, a chewy blondie middle, and a crunchy cookie topper, these bars offer a medley of textures and flavors that will please any dessert lover.

How to Make Triple Decker Bars


  • 1 cup (2 sticks) unsalted butter
  • 4 ounces chopped semisweet chocolate
  • 2 cups granulated white sugar
  • 4 large eggs
  • 1½ cups all-purpose flour
  • ⅓ cup unsweetened cocoa powder
  • ½ teaspoon salt
  • 1 cup (2 sticks) unsalted butter, melted and cooled
  • 2 cups packed light brown sugar
  • 2 large eggs
  • 1 tablespoon vanilla extract
  • 2½ cups all-purpose flour
  • ¼ teaspoon baking soda
  • ¼ teaspoon salt
  • 1½ cups butterscotch chips
  • 30 whole creme-filled chocolate sandwich cookies (such as OREOS)


  1. Preheat the oven and prepare a baking pan with foil or parchment paper.
  2. Prepare the brownie batter and blondie batter separately.
  3. Assemble the bars by layering the brownie batter, cookies, and blondie batter in the pan.
  4. Bake until a toothpick inserted into the center comes out clean.
  5. Let the bars cool completely before cutting into squares.

How to Serve Triple Decker Bars

Serve these decadent bars at room temperature for the best texture and flavor. Enjoy them on their own or with a scoop of vanilla ice cream for an extra special treat.

How to Store Triple Decker Bars

Store the bars in an airtight container at room temperature for up to 3 days. For longer storage, you can refrigerate them for up to a week or freeze them for up to 3 months. Thaw frozen bars in the refrigerator before serving.

Tips to Make Triple Decker Bars

  • Ensure the brownie and blondie batters are well mixed but not overmixed to maintain their textures.
  • Press the cookies gently into the brownie batter to prevent them from sinking during baking.
  • Allow the bars to cool completely before cutting to prevent crumbling.


For a twist on the classic recipe, try using different flavored cookies or adding a sprinkle of sea salt on top for a sweet and salty contrast.


  1. Can I use dark chocolate instead of semisweet chocolate in the brownie batter? Yes, dark chocolate can be used for a richer chocolate flavor.
  2. Can I add nuts or dried fruits to the blondie layer? Absolutely, feel free to customize the blondie layer with your favorite mix-ins like nuts or dried fruits.
  3. Can I omit the butterscotch chips in the recipe? Yes, you can leave out the butterscotch chips or substitute them with another type of chocolate chips for a different flavor profile.

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