For using pre-cooked raw shrimp, cook the shrimp for 5 minutes in a small amount of water with 2 pinches of salt. Drain and cool quickly in cold water. Drain and set aside in the fridge for the next steps of the recipe.
To use raw shrimp, place the shrimp in a bowl and cover with lemon juice. Cover and place in the refrigerator for about 20 minutes, or more, depending on your preferred level of cooking.
Lemon juice (citric acid) cooks the fish through a phenomenon known as denaturation.
Drain once the time has elapsed and set aside. Keep the amount of lemon juice you need for the recipe.
Dice the peppers, tomato, avocado and onion and place in a salad bowl.
Add the shrimp, lemon juice, orange juice and chopped coriander.
Add salt and pepper to taste and mix gently.
Place in a cool place for 20-30 minutes to allow the aromas to blend.
Fill your verrines evenly and sprinkle a tiny pinch of Guérande fleur de sel and Piment d'Espelette over the top. Decorate each verrine with a thin slice of red onion.
Serve chilled with tortilla chips.