In the 1600s, baked goods made with flour and urine were believed to ward off evil

Atlas Obscura has a weirdly fun piece about 'witch cakes,' a popular baked good from the 1600s. As it turns out, the Salem Witch Trials were not, uhhh, taking the piss:

The origins of the tragic trials lay within Reverend Samuel Parris's own home. — Read the rest