I made a King Cake last year that turned out disastrously! Although the cake (which is really more of a yeast bread recipe) turned out fine, it is then glazed and sugared with the colored sugars to represent something to do with Mardi Gras--I forget now what they are.
The powdered sugar bag was on a shelf in the pantry which had previously housed a bottle of laundry detergent. I had no idea that somehow some detergent dripped and been absorbed into the shelf, which somehow leached into the powdered sugar bag..
The thing tasted like it was tinged with soap-- AWFUL!! I was so excited to present it after dinner on Fat Tuesday--the thing took a while to make after all--and after everyone took a bite they all had this strange look on their faces. Since we'd never tasted King Cake before they all thought maybe it was supposed to taste like that... !! (I didn't make them eat anymore).
It took a few weeks to figure out what happened!!
I will give this recipe another go, though, soap-free this time!