Knock You Naked Brownies by The Pioneer Woman REVIEW: the title says it all! These brownies are out of this world. Make sure to let them cool in the fridge for at least 4 hours before slicing. Also, in her recipe, Ree says to only use German Chocolate Cake mix-no substitutes. I disagree, after making them I know next time to use a mix I personally like more, such as Devils Food or Rich Chocolate. So use whatever chocolate cake mix you love!