To make a fish terrine, the fish is first filleted and cut into small pieces. The vegetables, such as carrots, onions, and celery, are also chopped into small pieces. The fish and vegetables are then mixed together in a bowl with some sauce, such as a velouté sauce or a béchamel sauce. The mixture is then poured into a terrine mould and baked in the oven until it is cooked through.
Once the terrine is cooked, it is allowed to cool completely before being sliced and served. It can be served with a variety of accompaniments, such as bread, crackers, or salad.
Fish terrine is a delicious and versatile dish that can be enjoyed by people of all ages. It is a great way to use up leftover fish and vegetables, and it is also a perfect dish to make ahead of time for entertaining guests.