Livornese tuna

Preparation:

Preparation: Slice the garlic and onion, put them in a pan with the oil and a little parsley, sauté for 2 minutes, turning, then add the tuna steaks, add salt and pepper and cook for 5 minutes on each side. Pour in 2 tablespoons of hot water, cover, lower the heat and cook for another 2 minutes. Remove the lid. Add the wine, dilute the flour with a little water and add it to the slices and cook until everything has thickened.