« All EventsThis event has passed.Rice Krispie Treat DaySeptember 18« Mason Patterson’s BirthdayButterscotch Pudding Day »September 18, 2026 is Rice Krispie Treat Day. Enjoy it your way. Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Share:FacebookXWhatsAppThreadsTextMore… Details Date: September 18 Event Tags:DidYouKnow, FoodHolidays, WhatzToday