Lemon Meringue Pie is a type of baked pie,  usually made of shortcrust pastry, lemon custard filling and a fluffy meringue topping. Lemon meringue pie is prepared with a bottom pie crust, with the meringue directly on top of the lemon filling. No upper crust is used.

Lemon flavored custards, puddings and pies have been enjoyed since Medieval times, but meringue was perfected in the 17th century. Lemon meringue pie, as it is known today, is a 19th-century product. The earliest recorded recipe was attributed to Alexander Frehse, a Swiss baker from the canton of Romandie.