Guéridon service involves preparing foods like salads, beef stroganoff, or desserts in front of guests using a guéridon trolley equipped with a gas stove, cutting board, and other tools. An important innovation was flambé work introduced by Henri Charpentier, which involves lighting alcoholic sauces on fire at the table. Proper guéridon setup includes tablecloths, plates, cutlery, pans, and ingredients depending on the dish. Restaurants use various types of guéridon trolleys for serving hors d'oeuvres, cooking meals tableside, displaying wines, serving cheeses and desserts.