One tip only,
use a crock-pot on low. no water at all. chlorophyll isn't oil soluble(I don't think) so you shouldn't be worried about that. I've done about 40 recipes thus far, everything from rice Krispie treats to alfrado cheese sauce. The secret to potency as I see it is: duration,temp & sat. fat.
I do 12Hrs crockpot on low and ground up well. then strain with cheesecloth. one brownie and your good.