BBQ Mexican Prawn Salsa

Ingredients

• 2 tablespoons olive oil.
• 2 cloves garlic, minced.
• 1 long red chilli, seeds removed, finely diced.
• 1/3 cup coriander leaves, chopped.
• Sea salt and freshly ground black pepper.
• 12 large whole prawns.
• 1 lime, to serve.
• 2 small tomatoes, diced.
• 2 small cucumbers, diced.
• 1 avocado, diced.
• Sea salt and freshly ground black pepper, to taste.
• 2 corn cobs, husked.