I've heard that if you die with witch broth being thrown over you, you're done for in the next world, as well as this.
"Myths And Legends Of Our Own Land, Complete" by Charles M. Skinner
The child's brewing witch's broth, for sure.
"Red Money" by Fergus Hume
O ye witch's oils, hell-broths red and black, pills, and electuaries!
"The Atlantic Monthly, Volume 18, No. 108, October, 1866" by Various
Over a big cauldron two men are bending, stirring a witches' broth to charm man's eye.
"The Tapestry Book" by Helen Churchill Candee