1. Wash the fish with water . Wipe out gut area with absorbent paper.
2. Score the thickest part of the fish wih some diagonal slashes. Turn fish over and slash other side.
Place lemon slices, onion slices and 2 garlic cloves (crushed) into the cavity.
3. Chop 8 tomatoes, crush 3 garlic cloves, chop 1 onion.
When the onion browns, stir in 2 spoons of sugar, chopped tomatoes, one lemon juice, a cup of white wine and a small amount of salt. Cook until the sauce is thicker.