Quiche is a savoury, open-faced pastry crust with a filling of savoury custard with cheese, meat, seafood, or vegetables. Quiche can be served hot or cold. It is part of French cuisine but is also popular in other countries, particularly as party food. Quiche lorraine is a popular variant that was originally an open pie with a filling of custard with smoked bacon or lardons. It was only later that cheese was added to the quiche lorraine.