Place the water, vinegar, ½ of the salt and garlic in a large saucepan and bring to the boil and add all the ingredients, except the sliced garlic, the extra virgin olive oil the extra vinegar and the chilli. Blanch for about 10 minutes. Remove some of the water and save.
Strain the vegetables and let cool down. Place in a large recipient add the saved liquid, add the vinegar, the extra virgin olive oil, red chilli sliced on an angle (optional).