Prepare Ahead: Pat the prawns dry with kitchen paper. Peel the garlic and finely chop. Halve the chilli, discard the seeds and finely chop. Mix the garlic, chilli and prawns. Heat 1 tablespoon of the oil in a pan, add the prawns and stir fry for 2-3 minutes, until pink. Tip into a bowl and leave to cool, then chill for up to 8 hours.

Quarter the tomatoes and discard the seeds. Finely chop the flesh and tip into a bowl with the lemon juice, honey and remaining oil. Add coriander, season and whisk until slightly thickened. Cover and chill for up to 8 hours.

On The Day: Tear the gem leaves into small pieces. Chop the avocado flesh. Fill 6 glasses with lettuce, avocado and rocket leaves. Pile the prawns on top and spoon over the dressing. Serve with Italian flatbread or toasted pittas.