Preheat oven to 325 degrees and spray a 9x13” pan with nonstick cooking spray. In a medium bowl, whisk eggs to blend; whisk in oil & water until well-blended. Gently stir in Foodstirs Organic Brooklyn Brownie Mix until batter is thick. Spread batter into a thin even layer.
Bake 10 minutes, then remove and top with peanuts and peanut butter cups. Bake for 4-6 minutes more. In a microwave safe bowl, melt together chocolate chips, peanut butter and butter. Stir in cereal. Remove brownies from oven and pour chocolate mixture over top of brownies.
Refrigerate brownies at least for 2 hours, then cut into squares before serving.