Mix up the brownie mix per directions on the package or according to your recipe.
Pour half of the batter into a baking pan that has been coated with non-stick spray.
Chop the Nutter Butter Cookies into pieces.
Sprinkle with the chopped cookies over the brownie batter. Then sprinkle with the chocolate chips.
Pour the remaining batter over the cookies and chocolate chips. Spread to cover the nutter butter cookies and chips as much as possible.
Bake the Nutter Butter Chocolate Chip Brownies according to package directions. Ours took a couple minutes longer.
We used Duncan Hines Chew Fudge Brownie Mix and I have included the egg, oil, and water amount as listed on the package. This was done to figure nutritional information. If you use a different brand or type, adjust those ingredients as needed.