Herbed Grilled Tuna In Foil (Pesce Al Cartoccio) - cooking recipe

Ingredients

4 slices fresh tuna, one slice per person about 1 \" thick
1/2 cup balsamic vinegar
salt & pepper
1 cup fresh mint leaves
2 teaspoons dried oregano
2 large onions, sliced thin
extra virgin olive oil

Preparation

Combine the vinegar, salt, pepper, mint leaves and oregano in a non-reactive pan.
Marinate the tuna slices in the liquid for 15 minutes.
Prepare a large piece of aluminium foil for each slice of fish, by brushing the foil with oil and lining it with sliced onions.
Drain the fish and place each slice on a piece of aluminium foil.
Cover with another layer of onions.
Tightly seal the foil around each slice of fish and cook on the grill for 10-15 minutes per side, or in a 350-degree oven for 15 minutes.