make cannabutter.... ( 1 1/4 sticks butter) then make sure you get brownie mix that calls for a stick butter gently warm up the butter and pour it in the batter. Make sure you grind up the weed in a coffee grinder as fine as possible before making the cannabutter. Also cook around 25 - 50 degrees lower than the mix calls for.
Thats what I did and they tasted alright and got me FUCKED!