Bean jar (Guernésiais: moussaettes au four; French: pot de haricots de Guernesey) is a local dish of the Channel Island of Guernsey.

The traditional Guernsey bean jar has been around for centuries, and is still popular today.

Bean jar has long been a well known part of Guernsey culture.

Bakers would allow residents to cook the dish in their ovens overnight, to be eaten at breakfast.

It is also served at Lé Viaer Marchi, a National Trust of Guernsey annual festival.