In a microwave-proof bowl, melt the butter. Add in the cake mix and ⅓ cup of the evaporated milk.Stir together until everything is completely mixed. The brownie mixture will be thick almost like cookie dough.
Spread half of the brownie dough into your greased 13x9 inch pan.
Bake in the oven for 6 minutes.
In a medium-sized stovetop pan pour in the package of caramel and ⅓ cup evaporated milk.Over low heat, slowly melt these two ingredients together, stirring often.
On the baked brownies evenly spread out your chopped pecans, chocolate chips, and drizzle with the caramel sauce.
Take small handfuls of the remaining brownie dough and flatten with your fingers and place it on top of the caramel. Place those pieces all over the pan to cover as much as you can. You may have some holes but once baked you will not be able to tell.