Cider sauce for oat herrings (Irish) is a recipe for a sauce made from cider, vinegar, and spices, typically served with oat herring dishes.

Melt butter, add flour and cook for 2-3 minutes so that the raw flavor ofthe flour has time to mellow.
Remove from heat and slowly add the cider,stirring all the time.
Season to taste, bring to the boil, and cook for afew minutes.
Remove from heat again, add the milk or cream, and reheatcarefully.
Serve in a hot sauce boat.
Ingredients
Directions
Melt butter, add flour and cook for 2-3 minutes so that the raw flavor ofthe flour has time to mellow.
Remove from heat and slowly add the cider,stirring all the time.
Season to taste, bring to the boil, and cook for afew minutes.
Remove from heat again, add the milk or cream, and reheatcarefully.
Serve in a hot sauce boat.