The phrase represents a specific set of instructions for preparing a dessert. It encompasses the ingredients, measurements, and procedures required to create a lemon-flavored pie characterized by a superior, or “supreme,” quality. As an example, searching for those words could lead to a detailed listing of steps involving a pre-made graham cracker crust, a creamy lemon filling, and possibly a meringue or whipped topping.
Such culinary directions are valuable because they offer a standardized approach to baking, ensuring a predictable and desirable outcome. Following these instructions allows individuals to recreate a particular dessert with a reasonable expectation of success. The historical context of this particular dessert type is rooted in traditional American baking, evolving over time with variations in techniques and ingredients.