Step 1

For the prawn cocktail, mix together all of the prawn cocktail ingredients in a bowl until well combined. Season, to taste, with salt and freshly ground black pepper.

Step 2

To serve, divide the shredded lettuce equally among four serving dishes. Arrange the avocado slices on top, then spoon over the prawn cocktail mixture. Sprinkle over a pinch of cayenne pepper and garnish with a shell-on prawn and a sprig of coriander. Serve immediately.