Preheat oven to 350 degrees F. In a sauce pan over medium heat, melt the stick of butter. Once melted pour the sugar in, mix well and remove from heat.
Pour the sugar/butter mixture in a large bowl and then mix all remaining ingredients together.(Reserving the whole pretzel pieces to garnish on top of each brownie bite). The brownie batter will be thick. Just keep mixing.
Spray a cupcake tin with PAM. Scoop brownie batter into the cupcake pan and top with a pretzel. Bake for 20-25 minutes, or until toothpick is inserted and comes out clean!