Pargo Con Salsa de Aguacate

• 1 onion, sliced
• 1 clove garlic, crushed
• 1 bay leaf
• ½

Place all the ingredients, except the fish, in a large saucepan. Add 6 pints of water, bring to the boil and simmer, partially covered, for half an hour. Cool. Wash the fish, drain and wrap in a long, double-thick piece of cheesecloth. Lay the fish in a roasting pan or fish poacher large enough to hold