Roll the lampuki portions in the flour until evenly coated; dust off any excess
Heat 2 tbsp olive oil and fry the lampuki pieces for about 5 minutes on each side until cooked through; remove from the pan and allow to cool; once cool enough to handle remove the skin and all the bones and set aside
Heat the remaining 2 tbsp of olive oil in a deep saucepan; fry the onion and garlic until soft; add the tomatoes, tomato puree, vinegar and water and simmer for about 10 minutes, until the sauce thickens; adjust the seasoning; add the capers and black olives and simmer for another 3 minutes
Place the cooked lampuki portions in a shallow dish and pour the hot sauce over them; scatter the fresh basil leaves on top and serve with crusty bread
6 servings