Bake the brownies up for your friends that your mother bought you...
Then take your protein powder, mix it with a prepared peanut butter and bit of honey nuked glob-- add oats and a little milk to help mix. Keep this in the fridge (it is like a no bake cookie). Eat this while your friends eat the brownies-- tell them you used all your mother's ingredients to make them "quality" brownies and that for your punishment, you have to eat a concoction of the shit she has found in the back of the cupboard.
And keep it real...