Crispy Oven Fish Fry with Mushy Peas

Name: Crispy Oven Fish Fry with Mushy Peas
Ingredients: 5 tablespoons butter; 3 cups panko crumbs; 1 tablespoon seafood seasoning (recommended: Old Bay) or Szeged Fish spice, a palmful; 1 tablespoon granulated onion, a palmful; 1 tablespoon granulated garlic, a palmful; 1 lemon or lime, zested; A couple tablespoons freshly chopped thyme leaves; A couple tablespoons finely chopped chives; 1 1/2 to 2 pounds cod, cut from the thickest part of fillets shaped into 8 rectangular batons; Salt; 2 extra-large egg whites, beaten to frothy; 1 cup packed flat-leaf parsley; 1 cup packed fresh mint; 3 cups freshly shelled peas or frozen and defrosted organic peas, patted dry; 1 tablespoon extra-virgin olive oil; 2 large shallots, finely chopped; 2 cups chicken stock-in-a-box; Freshly ground black pepper; Malt vinegar