Chocolate and peanut butter. Sugar and salt. Smooth and crunchy. This pie from Erica's Sweet Tooth has it all. A salty pretzel crust is filled with a thick an rich peanut butter chocolate brownie batter. You probably have most of the ingredients already in your pantry so you can whip up this dessert at the drop of a hat. Also, pretzel peanut butter brownie pie transports well so its great for picnics and potlucks.