The circular or rectangular cooking surface, often crafted from ceramic or stone, is designed for use within a Big Green Egg ceramic cooker. It facilitates baking, particularly of pizzas, by providing a consistent and even heat distribution. This accessory sits atop the grill grates, separating the food from direct flame.
Employing this specialized implement in the cooking process promotes uniform crust browning and helps eliminate soggy centers, a common issue when baking directly on a grill. Its thermal properties contribute to creating an environment similar to that of a traditional brick oven. The historical context involves adapting existing baking techniques to utilize the unique heat retention capabilities of ceramic cookers.