I found this online and it works:
[FONT="]After searching all over the internet and learning almost nothing about making a good, potent marijuana tea, I decided to just go ahead and try it myself (while abroad in Amsterdam, of course). IT WORKS. What I ended up with was a delicious tea that got me absolutely wasted for several hours (I'll admit I overdid it a bit....). Here's what I did, and the dosages I recommend:
1) Crush up 1 gram of nice kind-bud as fine as you can get it and put it in a teabag (you can unstaple any teabag, replace with ganja, and re-staple or paperclip). You can omit the teabag if you have something to strain your tea through when it is done like a gold coffee filter or cheesecloth.
2) Put 1 cup of water in a medium saucepan or tea kettle and heat over high until boiling.
3) Reduce to a low boil and add your ganja teabag (or loose ganja) with **1/2 teaspoon of butter** (you will not get any effect without this ingredient. NO MARGARINE.). Stir until dissolved.
4) Cover and let simmer for 1 hour.
5) Stir in one cup of whole milk, along with cinnamon, sugar and allspice to taste. You can also add an herbal teabag like African redbush or licorice, if desired). Bring back to boil and simmer for 15 minutes.
6)Add 1/2 teaspoon of vanilla extract and bring to a rolling boil, stirring constantly. Boil for 30 seconds and transfer to large mug (through filter if not using teabag). Sprinkle with nutmeg.
I drank the whole thing immediately. It was delicious and two hours later I was basically tripping. I'd probably recommend 1/2 as a starting point. If you measure out the recipe as I've directed, you can make 4 small sups and get slightly buzzed, 2 medium cups and get pretty stoned or 1 big cup and get totally blitzed into uselessness.
Have fun![/FONT]