The phrase refers to an aftermarket accessory designed to convert a standard Weber grill, typically a charcoal or gas model, into a functional pizza-baking appliance. These devices usually consist of a specialized enclosure that sits on top of the grill, creating a concentrated heat chamber suitable for cooking pizza at high temperatures, similar to traditional wood-fired ovens.
The benefit of using such an accessory lies in its ability to achieve authentic, pizzeria-style results at home. It offers a cost-effective alternative to purchasing a dedicated pizza oven, while leveraging an existing grilling setup. This approach enables users to achieve crispy crusts and evenly cooked toppings, replicating the effects of a high-heat, enclosed cooking environment. Historically, home cooks have experimented with various methods to achieve similar results, but these dedicated accessories provide a more reliable and consistent solution.