Preheat the oven to 400°F with rack in middle position.
Meanwhile, press the garlic and place in a small bowl. Add two tablespoons of olive oil and mix.
On a parchment paper lined baking sheet, place the ciabatta bread halves, cut side up, and brush the garlic and oil mixture on top of each half. Place in the oven and bake until golden brown and crispy, about fifteen minutes.
Meanwhile, slice the onion thinly, cube the cucumbers, halve the mozzarella balls, chop the hot pepper, halve the olives, quarter the tomatoes and place it all in a large salad bowl. Rip up the basil leaves and add them to the bowl.
Once the bread is ready, remove from the oven and let cool off a bit. Cut the bread into cubes. You may only need three of the halves, depending on the amount of bread you prefer in the salad. Add the bread cubes into the salad bowl.
Season with sea salt, black pepper, vinegar and olive oil. Mix slowly and serve.