1. Start by cooking the eggs. In a saucepan, bring the water to a boil, then add the eggs. Let it cook for 10 minutes. After 10 minutes, remove the eggs from the hot water and put them in cold water to stop the cooking. Let them cool for about 10 minutes.
2. Once the eggs have cooled, carefully peel them and cut them in half lengthwise. Remove the egg yolks and place them in a bowl.
3. Mash the egg yolks with a fork, then add the truffle mayonnaise. Mix well to obtain a smooth consistency. Season with salt and pepper .
4. Fill the egg whites with the truffle mayonnaise mixture using a piping bag or simply a spoon. Garnish the top of each egg half with summer truffle pieces and a few fresh parsley leaves.
5. Place the truffled deviled eggs in the refrigerator for at least 30 minutes before serving.