A 1/4 ounce will work fine. Put it in the oven for about 15 minutes at 250 degrees F. AFter drying put it in a coffee grinder and grind to a powder. Add the amount of butter or oil thats required for the brownie mix in a sauce pan and set on simmer. Add the weed and stir it in. Let it simmer for about 10 minutes. Let cool and then add to your recipe.