In a large pot or Dutch oven, heat the olive oil over medium-high heat. Season the chicken thighs with salt and pepper and place them in the pot. Sear for about 5 minutes on each side, or until browned. Remove the chicken from the pot and set aside.
In the same pot, add the chopped onion and garlic. Sauté until the onions become translucent and fragrant, about 3-4 minutes.
Stir in the ground cumin, cinnamon, smoked paprika, turmeric, and crushed red pepper flakes, cooking for an additional 1 minute to toast the spices.
Add the basmati rice to the pot, stirring to coat with the spices. Follow by adding the can of diced tomatoes and chickpeas, then pour in the chicken broth. Mix everything well.
Place the seared chicken thighs back into the pot, ensuring they are submerged in the liquid. Bring the mixture to a gentle simmer, then cover the pot with a lid.
Let the dish cook for 20 minutes on low heat without removing the lid, until the rice is tender and has absorbed the liquid.
Once cooked, remove the pot from heat and let it sit covered for another 5 minutes. Afterward, remove the lid, fluff the rice with a fork, and adjust seasoning with more salt and pepper if necessary.
Plate the chicken and rice, garnishing with freshly chopped cilantro or parsley. Serve with lemon wedges on the side to squeeze over the dish.
Notes
Adjust the crushed red pepper flakes for desired spice level.