You need firm bread with a
good structure for this salad
as a softer loaf will disintegrate. If you
don’t have ciabatta, use any country
loaf with a good crust, or pitta bread.
Dip the bread briefly into cold water,
then squeeze well and crumble into a bowl.
Halve the tomatoes and squeeze out the
seeds, then roughly chop the flesh. Chop
the cucumber into small chunks.
Add the tomato and cucumber to the
bread, then tear in the basil leaves. Drain
and flake the tuna into chunks, add to
the bread with the capers, vinegar, oil
and salt and pepper to taste. Mix everything
well and serve.