Italian Tuscan Bread Salad

Name: Italian Tuscan Bread Salad
Cuisine: Portuguese, European
Ingredients: 300g day-old rustic bread (preferably unsalted Tuscan bread); 4 ripe tomatoes, diced; 1 cucumber, peeled and sliced; 1 small red onion, thinly sliced; 1 handful fresh basil leaves, torn; 3 tbsp red wine vinegar; 5 tbsp extra virgin olive oil; Salt and freshly ground black pepper, to taste; Optional capers or olives (for extra flavour)