In a small pan over medium heat, toast the slivered almonds until they are fragrant and golden brown, then set aside.
Dice the chicken breast into bite-sized pieces and season with half of the sea salt and black pepper.
Heat the olive oil in a skillet over medium-high heat and sear the chicken until cooked through and lightly browned, then remove from the pan.
In the same skillet, add the finely diced onion and minced garlic, sautéing until translucent and aromatic.
Stir in the dry basmati rice, coating it in the remaining oil and toasting the grains for one minute.
Pour in the chicken bone broth and the remaining salt and pepper; bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes.
Once the liquid is absorbed and rice is tender, fluff with a fork and stir in the cooked chicken, lemon zest, lemon juice, parsley, and dill.
Serve the pilaf warm, topped with the toasted almonds for a satisfying crunch.