HELP ME!!! PLEAASSE DAMSEL IN DISTRESS!

K Im getting together with four of my friends on the weekend, we are making weed brownies! This is the information I recieved. Tell me if this is how I can make my most potenant batch.

1. preheat oven to 360...make an eighth worth of weed for every brownie mix package i have

2. bake for 5 minutes on 360 on a cookie sheet (my eighth) so 80 bux of weed?

3.then simmer in butter... how much butter though? however much the package requires?? for 20 minutes??

then throw it in the mix and bake regularly right? but at 315 lower temp then higher temp for 45 minutes...

is an eighth too much to use for one brownie package mix...and how much oil ive never done this but i want an amazing experience please someone help.. thanx!