Chicken with almonds

Ingredients :

 1 lemon, cut in two
 4 quarters of chicken
 1/2 teaspoon ginger powder 1/2 teaspoon cinnamon powder a pinch of roasted and crushed saffron filaments
 1 finely chopped sweet onion
 125 g hulled almonds, chopped
 leaves of a large per finely chopped boot
 salt and pepper