When I make brownies or cookies, I use oil instead of butter. I've tried butter but find that simmering the pot (I usually use about 1/8 - 1/4 oz, including seeds and stems) in canola oil in a double boiler makes the most potent mixture. I use 1/2 cup of oil, dump all the weed into a saucepan and put that pan into a big spaghetti pot filled with boiling water. I lower the heat and leave it all day usually, just simmering. When it's done I strain it; all the THC has been cooked out of the weed so you can just throw it away and use the oil.
Here is the recipe for cookies:
Ingredients:
1/2 cup pot-oil
1 1/3 cup flour
1/2 teaspoon salt
1/2 teaspoon baking soda
1/2 cup brown sugar
1/4 cup granulated sugar
1 egg
1 bag chocolate chips
Directions:
1) Preheat oven to 180°C (350°F).
2) Mix (by hand) the butter, sugars, and egg into a large bowl.
3) Combine the baking soda, salt, and flour.
4) Slowly add the flour mixture to the butter mixture and stir by hand.
5) Add chocolate chips.
6) Shape the dough into 1-inch balls and place them two inches apart on a greased cookie sheet.
7) Bake for 25-30 minutes.
Good luck!