How to Make It
Preheat the oven to 400°. In a medium saucepan of boiling water, cook the potatoes until barely tender, about 8 minutes. Drain and pat dry.
In a bowl, toss the chicken pieces with the olive oil, ground spices, Harous, saffron water and a pinch of salt. Add the potatoes and toss. Transfer to a roasting pan and roast until the chicken is cooked through and the potatoes are tender, about 45 minutes. Transfer the chicken to a platter and keep warm.
Mix the green peppers, tomatoes and lemon slices into the potatoes. Roast, stirring occasionally, until the peppers are tender, about 20 minutes.
Preheat the broiler. Arrange the chicken pieces on the vegetables, skin side up, and broil 4 inches from the heat until the skin is browned and crisp, about 1 minute. Transfer the chicken and vegetables to the platter, drizzle with the pan juices and serve.