Tear the ciabatta into rough 3cm pieces and place on a tray. Leave aside in a warm place for around 30 minutes – this helps to dry it out. (Unless already using stale bread)
Chop the tomatoes and place the tomatoes in a bowl and season with salt and pepper.
Rinse the capers, squeezing out any excess liquid and add to the bowl, along with the onion, garlic, roasted red peppers, black olives, ciabatta and anchovies and lots of torn up fresh basil.
Toss the mixture together with your hands, then stir in 3 tablespoons of vinegar and about 3 times as much extra virgin olive oil. Taste and add a little more salt, pepper, vinegar or oil, if needed.
Ready to serve - it is also great with some buratta or buffalo mozzarella or even a piece of rare grilled tuna.