Tonno Rosso Sandwich

Jul 22 2024

True to the word "Rosso", red tuna, red onion and red radicchio are prepared into a Sicilian aperitivo.

Ingredients

200
g red onions
300
g fresh fillet of tuna
500
ml white wine vinegar
500
g radicchio
1
Spritzer balsamic vinegar
1
focaccia or any good white bread
50
g caciocavallo cheese, coarsely grated (you can substitute Parmesan cheese if you can't find caciocavallo)
10
green salad leaves
etwas salt, olive oil
1
Handvoll garlic
etwas fresh thyme

Step 1
Slice the onions and soak them in the white wine vinegar for 24 hours. Wash the radicchio well, cut it in half and roast it in a grill pan without oil. Then cut into slices and season with oil, salt, chopped garlic, thyme leaves, stripped from their stalks, and a splash of balsamic vinegar.
Step 2
Season the tuna with oil and a little salt and grill in a very hot grill pan for just under 1 minute on each side. Make sure that the tuna is nicely roasted on the outside and still raw on the inside. Set aside to cool and slice very thinly.
Step 3
Cut the focaccia lengthwise or cut nice slices from the white bread.
Step 4
Season the bread with salt and olive oil.
Step 5
When assembling the sandwich, put the radicchio in first as a base before adding the cheese. Melt it briefly in the hot oven, then pile on the thinly sliced tuna along with the onions (removed from the vinegar and drained) and lettuce. Put the other half of the bread on top and cut into small sandwiches.