Chocolate Cauldrons are boxed chocolates that are filled with Firewhiskey and presumably shaped like cauldrons. Romilda Vane gave Harry Potter a box that she had spiked with Love Potion in 1996. On 1 March, they were eaten by Ron Weasley, who mistook them for a birthday present. He offered Harry one, but he refused to accept it since he knew about the love potion. There are most likely eight in a package, since when Ron Weasley ate four Cauldrons with Romilda's love potion in them, Harry said, "You just ate half a box of Chocolate Cauldrons."