Herring butter

Description
In Romanian: Unt cu heringi

Ingredients

 * 7 oz/200 g butter,
 * 1 herring

Directions

 * 1) Split the herring lengthwise on the belly line.
 * 2) Remove the roe and then keep the herring in water for 5-6 hours.
 * 3) Then drain, remove the skin, backbone and all bones.
 * 4) Finely chop the herring fillet and mix with butter.