She devoured her stepdaughter in pursuit of eternal youth SD

Description: They found an ancient spell with a recipe for rejuvenation. but the strangest thing is that one of them should be turned into a fried chain, and the other should eat it all. crumpet got there first and turned her stepdaughter into a fried chain. with incredible pleasure, she ate the whole chain. her belly looks full, but for some reason her youth has not returned. instead of youth she gained more weight, what did she do wrong?