Preheat your oven to 375°F (190°C).
Season the chicken thighs with cinnamon, ginger, turmeric, salt, and pepper.
Heat olive oil in a large skillet over medium heat. Add the seasoned chicken and brown on all sides, then add chopped onion and cook until translucent.
Pour in chicken broth, cover, and let simmer for 20 minutes, or until the chicken is cooked through.
Remove the chicken, shred it, and set aside. Beat the eggs and pour them into the skillet with the onion and broth mixture, cooking until they are scrambled and set.
Combine the shredded chicken, scrambled eggs, almonds, powdered sugar, and orange blossom water in a bowl, mixing well.
Lay out a sheet of phyllo dough on a clean surface, brush with melted butter, and place another sheet on top. Repeat this process until all sheets are used.
Place the chicken mixture in the center of the stacked phyllo sheets, and fold the dough over the filling to create a parcel, sealing the edges with butter.
Place the parcel on a baking sheet with the seam side down, brush the top with more melted butter, and bake for 25-30 minutes, or until golden brown.
Let the Bisteeya cool slightly, then dust with powdered sugar before serving.