Use a medium pot or casserole over high heat and add the rice and the dry coriander, pour the broth and season with the salt and pepper. Cover the pot with its lid, bring to a boil and simmer for 10’ making sure that the liquid is not completely absorbed. If so, add a bit more.
Turn off the heat, open the lid and strain the rice. Keep aside to cool.
Place the cooled rice in a large bowl and mix with the coriander, scallions and avocado. Pour the dressing, mix again, taste and season accordingly.