Triple Decker Bars

Bahan-bahan (24 porsi)

• 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))