Instructions

• Preheat oven to 350°F. Line a 9x9-inch pan with foil, leaving an overhang on two sides for easy removal, and spray the foil with cooking spray.
• In the bowl of an electric mixer fitted with the paddle attachment, add the large avocado and beat until the large pieces are mostly smooth (a few small pieces are fine).
• Add the chocolate cake mix and the egg to the avocado and beat on medium-low until the ingredients are fully combined.
• Scoop roughly half the batter into the prepared pan and use a spatula to spread it into an even layer across the bottom. Spray your hands with cooking spray and gently press the batter to flatten and cover the pan.
• Sprinkle 1 cup chocolate chips evenly over the bottom batter, then sprinkle 1/2 cup chopped nuts evenly on top of the chips.
• Pour 1/2 cup sweetened condensed milk evenly over the chocolate chips and nuts.
• Drop spoonfuls of the remaining batter evenly over the sweetened condensed milk layer. Spray your hands again and gently press the dollops together to cover as much of the top as possible (it’s okay if a few gaps remain).
• Bake for 25–28 minutes, or until a toothpick inserted near the edge comes out clean or with just a few moist crumbs (centers may be slightly gooey).
• Cool completely in the pan on a wire rack. Use the foil overhang to lift the bars from the pan, discard the foil, and slice into about 16 squares.