Potted herrings in Guinness is a traditional Irish recipe that calls for herrings to be marinated in Guinness beer overnight, then cooked in the same beer the next day. The herrings are then covered in a mixture of Guinness and butter, and left to cool.

Wash herring fillets and roll up, starting from the tail.
Place in abaking dish and add the stout-and-vinegar mixture.
Add all otheringredients.
Cover with baking parchment or foil and bake in a moderateoven (about 350F) for 20 minutes.
Remove from oven, allow to cool, andserve.
Ingredients
Directions
Wash herring fillets and roll up, starting from the tail.
Place in abaking dish and add the stout-and-vinegar mixture.
Add all otheringredients.
Cover with baking parchment or foil and bake in a moderateoven (about 350F) for 20 minutes.
Remove from oven, allow to cool, andserve.