What would the ingredients in witches brew be?

Round about the cauldron go;
In the poisoned entrails throw.
Toad, that under cold stone
Days and nights has thirty one
Sweltered venom of sleeping got,
Boil this first in the charmed pot.
Double, double toil and trouble;
Fire burn and cauldron bubble.
Filet of a fenny snake,
In the cauldron 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 howlet’s wing,
For a charm of powerful trouble,
Like a broth boil and bubble.
Double, double toil and trouble;
Fire burn and cauldron bubble.
Scale of dragon, tooth of wolf,
Witches’ mummy, maw and gulf
Of the ravin salt-sea shark,
Root of hemlock dug in the dark,
Silvered in the moon’s eclipse,
Nose of Turk and Tartar’s lips,
Ditch-delivered by a drab ,
Make the gruel thick and slab :
Add there to a tiger’s chawdron ,
For the ingredients of our cauldron.
Double, double toil and trouble;
Cool it with a baboon’s blood,
Then the charm is firm and good.