FYI these brownies are ridiculously good. They're good with or without the peanut butter. They make waayyyy too many, so please stop by to eat some before I undo all the good I've done working out this week. I guess I'll have to bring some to work tonight!
http://www.foodnetwork.com/recipes/ina-garten/peanut-swirl-brownies-recipe/index.html