/b/sixpacksmackdown/posts/peanut-brittle-protein-shake-recipeOne of our loyal SixPackSmackdown fans, Mark G, recently got a hold of me and said he found a top-notch protein smoothie recipe on a card inside his new shaker bottle. This smoothie was called a Peanut Brittle Protein Shake.en-USTelligent Community 11 Non-Production