Soused Mackerel

Directions

1. 1
   Cut each fillet into 6 pieces.
2. 2
   Put in a baking dish in a single layer.
3. 3
   Sprinkle with onion.
4. 4
   Add mustard seed, celery seed, turmeric, salt, vinegar, and water.
5. 5
   Cover the dish.
6. 6
   Bake in a preheated 350F oven for 30 minutes.
7. 7
   Serve hot or cold.
8. 8
   I keep any leftovers in a covered glass dish in the fridge.