Watermelon gazpacho

Ingredients

• 500g watermelon, rind removed and roughly chopped, plus a little extra finely chopped flesh to garnish
• 2 vine tomatoes, roughly chopped
• ¼ small red onion, roughly chopped
• ¼ cucumber, roughly chopped, plus a little extra finely chopped to garnish
• ½ red pepper, roughly chopped
• 1 garlic clove
• ¼ red chilli, deseeded
• 40g stale white bread
• 1 tbsp red wine vinegar or sherry vinegar
• 1½ tbsp extra-virgin olive oil, plus extra to drizzle