Preheat the oven to 400ºF.
In a large cast iron skillet over high heat, heat 2 tablespoons of the oil. When the oil is shimmery, add the onions and reduce the heat to medium.
Add a pinch of salt, and sauté until the onions are soft and translucent, about 5 minutes.
While the onions are sautéing add the chicken to a large bowl, season with salt and pepper, add the rest of the olive oil and 1 – 2 tablespoons of harissa. The amount of harissa totally depends on how spicy you like your food. Use tongs and toss chicken to coat it really well.
Add the garlic to the onions, and cook for another minute more.
Add the cumin and ginger, and 1 to 2 tablespoons of the harissa (again, totally depends on how spicy you want the dish!). Stir to coat the onions in the seasonings.
Add the rice and stir for another minute, toasting the rice to infuse it with the flavors of the spices.
Add the dates and the carrots along with a pinch of salt. Stir to combine. Nestle the chicken over the top of the rice. Pour 1 and 1/3 cups chicken broth over all the ingredients (see notes above for liquid ratios). Add the bay leaf.
Transfer pan to the oven (uncovered) and cook for 40 minutes.
Remove pan from oven. Add fresh parsley, and, if you like a little punch of acidity squeeze lime juice over the top.
Serve immediately while it’s hot!