Made since the 19th century for the feast day of St Vincent patron saint of winemaker (22 January) gochtial, a dense sweet bulbous shaped bread made according to a secret recipe, especially in Saint-Armel (they say the secret is in the special flour) where they now make it every day in a wood burning oven.
Sometimes spelled gotchial, goatchial, gostial or cochetial.
Image by kisaoma