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
Borodinsky bread though caraway seeds were usually used instead of coriander. Borodinsky bread Borodinsky bread () or borodino bread is a dark brown sourdough rye bread of Russian origin, traditionally sweetened with molasses and flavored with coriander and caraway seeds. Borodinsky bread is traditionally made (with the definite recipe fixed by a ГОСТ 5309-50 standard) from a mixture of no less that 80% by weight of a whole-grain rye flour with about 15% of a second-grade wheat flour and about 5% of rye, or rarely, barley malt, leavened by a separately prepared starter culture made like a choux pastry, by diluting the