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Butterscotch is a type of confectionery that may also be used in some potions, such as the Dawdle Draught, where it is used to give off an alluring, sweet scent. It is also the prime ingredient in Butterbeer, which tastes like "less-sickly butterscotch."
In the late 2010s during the Calamity, members of the Statute of Secrecy Task Force used butterscotch heavily in the making of the Dawdle Draught, which helped them deal with traces more effectively.