Louis' Lunch onion, then served on two square pieces of toasted white bread. Louis' Lunch flame broils the hamburgers in the original cast iron vertical gas broilers manufactured by the Bridge and Beach, Co., St. Louis, Missouri in 1898. The stoves use hinged steel wire gridirons to hold the hamburgers in place while they cook simultaneously on both sides. The gridirons were made by Luigi Pieragostini and patented in 1938. A sharp cheese spread is used, as opposed to sliced cheese. The restaurant uses a 1929 Savory Radiant Gas Toaster. The restaurant is traditionally closed during the month of August (for annual
Bataw (bread) Bataw (bread) Bataw () is a leavened flatbread from Egypt. It is widely consumed in the Egyptian countryside. The main ingredients of the bread vary depending on the region. In Asyut it is often made with barley, corn, or a mixture of barley and wheat. In Akhmim it is commonly made with corn and fenugreek, whereas in Qena, further south in Upper Egypt, it is exclusively made with barley. Ball-shaped lumps of dough are placed in an oven, traditionally with a wooden ladle with a long handle referred to as "maghrafa" (), and then flattened with the bottom side of