you can mix it all in one pan fine enough, it stops the butter from superheating and burnin yer goodness away.The canabiboids are fat soluable not readily water soluable. Your problem is that you only used 1/4 for 2 sticks of butter.
I use MINIMUM one ounce per pkg of butter.
Follow whatever method you prefer for making it.The results vary little depending upon method since the physics remain the same.
Press the mixture to sqeeze out the oil then repeat on stove to get the rest out.
After it cools the butter will be on top.
Take it out of the bowl, slice off the gooey organic matter and eat up.
(short abridged version )