Scald the shrimp
Scald the shrimp for 1 minute in boiling salted water. When they’re ready, put them aside.
Prepare the avocado
Cut open the avocado and remove the stone; peel, chop and set aside in a bowl.
Prepare the tomato
Peel the tomato, remove the seeds and save.
Combine the ingredients
Chop up the tomato and the shallot; add to the avocado, season to taste and add a tablespoon of olive oil. Transfer the tartare to a plate.
Add shrimp and decorate
Divvy up the shrimp, add cocktail sauce and decorate with the tomato seeds, salmon roe and chives.