Grous which is also known as Groux refers to Breton name of the thick gruel made from buckwheat flour. Breton is a Celtic language spoken in Brittany in the northwest of France. Presently, the Breton buckwheat tradition still survives , although most of the grain is now imported from Canada, where Buckwheat known as Ble Noir is grown by Breton expats who migrated to Canada