Delicious chewy chocolatey cookie bars made from simple ingredients including one boxed cake mix, chocolate chips, AND mini m&ms! – – Do you all remember that cake box cookie bars; recipe I shared a few weeks back?  Well, I had the brilliant idea to use brownie mix this time around!  And it works just as great with some chocolate pudding mix, and all the rest of the same ingredients.  It’s still easy, it’s still delicious, and it’s even more chocolatey! In fact I bet this recipe could be adapted to pretty much any flavor of boxed cake mix.  Red velvet…