In France what is a marmite?
A marmite (pronounced mar-meet) is a traditional crockery casserole vessel found in France. It is famed for its "pot-belly" shape. It lends its name to Marmite, a British savoury spread and to Marmitako, a Basque tuna dish.
According to the French culinary reference work 'Le Répertoire de la Cuisine', a marmite can be either a stock pot or "a French pot with lid similar to a casserole with two finger-grips on each side."
A casserole, from the French word casse meaning a case, is a large, deep dish used both in the oven and as a serving vessel. The word is also used for the food cooked and served in such a vessel, with the cookware itself called a casserole dish or casserole pan.