August 15·Every year

National Lemon Meringue Pie Day

Lemon meringue pie as we know it emerged in the 19th century, combining the preserved lemon curd tradition of Britain with the meringue technique refined by Swiss pastry chefs. August 15th's designation is unofficial but its following is sincere — the pie is among the most technically demanding home bakes, involving curd, pastry, and perfectly stiff peaks simultaneously.