Place the chicken into a large, deep skillet. Add lukewarm water to cover and 1 tablespoon of salt. Bring to a boil over high heat. Reduce heat and simmer for approximately 15 minutes.
Remove the pan from the heat and set aside for about 20 minutes.
Drain the chicken and permit it to cool. Shred the tender meat, discarding skin, bones, fat and gristle. Place the shredded meat in a large mixing bowl.
Heat 1 tablespoon of Argan Oil in a small skillet over medium high heat.
Add the almonds to the oil and continue to cook, stirring constantly. It should take about 2 minutes before they're toasted. Watch the almonds carefully so that they don't burn.
Use a slotted spoon to transfer them to paper towels. Sprinkle with 1/4 teaspoon of salt and set aside.
Thoroughly combine the remaining 1/8 cup of Argan oil, the grape seed oil, the vinegar, lemon juice, shallot, and salt and pepper. For a nuttier flavor, use additional Argan Oil.
Pour over the shredded chicken.
Add the cucumber, mango, tarragon, and mesclun, and toss to combine thoroughly.
Arrange the endive leaves on six serving plates. Top with the chicken mixture and sprinkle with toasted almonds.
Serve immediately, do not let sit in refrigerator.