Sabrina: The Animated Series (1999)

S1E23 Upside Down Town

Sabrina bakes a mystical cake that unexpectedly alters the behavior of everyone in town. As the townsfolk begin to act out of character, chaos ensues. Friends turn rivals, and kindness is replaced with competition. Sabrina must navigate the aftermath of her creation and find a way to restore balance before the town is forever changed. With the help of her friends, she embarks on a quest to reverse the effects of the cake and teach her community about the importance of their true selves.