Double double toil and trouble fire burn and Cauldron bubble

   Fillet of a fenny snake,
    In the caldron boil and bake;
    Eye of newt, and toe of frog,
    Wool of bat, and tongue of dog,
    Adder's fork, and blind-worm's sting,
    Lizard's leg, and owlet's wing,—
    For a charm of powerful trouble,
     Double, double toil and trouble;
    Fire burn, and caldron bubble. 

 This is the Mystery pot for my next big project.

BTW thanks to William for the words.

 

This is the clue .