Instructions

  1. Combine the milk, crab boil seasoning, pepper, salt and onion in a skillet, coverage and bring to a simmer.
  2. Add the fish to the liquid, spooning some of the liquid over the fillets.
  3. Reduce the heat to low.
  4. cover the skillet and poach for 6 to 9 minutes, depending on the thickness of the fillets.