Ingredients:
2 tablespoons olive oil 
  1 whole cut-up chicken or about 3 pounds parts 
  Salt and freshly ground black pepper 
  2 medium onions, chopped 
  1 tablespoon minced garlic 
  1 1/2 cups short-grain white rice 
  Pinch saffron threads, optional 
  3 1/2 cups water, chicken stock, or vegetable stock, or more as needed 
  1 cup peas (frozen are fine; no need to thaw them) 
Directions:
Put the oil in a large skillet over medium-high heat. When it's hot,  add the chicken, skin side down. Sprinkle with salt and pepper and  cook, undisturbed but adjusting the heat so the chicken sizzles but  doesn't burn, until the pieces release easily from the pan, 5 to 10  minutes. Then turn and rotate them every few minutes to brown them  evenly. As the chicken pieces brown, after another 5 to 10 minutes,  remove them from the pan. 
 
Reduce the heat under the skillet to medium and pour or spoon off  most of the oil so that only 2 tablespoons remain. Add the onions to the  pan and cook, stirring frequently, until they soften, 3 to 5 minutes.  Add the garlic and rice; cook, stirring, until the rice is glossy and  coated with oil. Crumble in the saffron threads if you're using them. 
 
Return the chicken to the pan, add the water, and stir gently to  combine everything. Bring the mixture to a boil, then reduce the heat so  it bubbles gently but steadily. Cover the skillet and cook,  undisturbed, for 20 minutes, then check the rice and chicken. The goal  is to have the liquid absorbed, the rice tender, and the chicken cooked  through. If the rice is dry but nothing is ready, add another 1/4 cup  water and cook for another 5 to 10 minutes. The meat is done when a  quick-read thermometer inserted into the thickest part of the thigh  reads 155-165°F. 
 
Remove the skillet from the heat. Taste the rice and adjust the  seasoning. Add the peas, then cover the pan again and let it sit for 5  to 15 minutes. Fish the chicken out of the pan and transfer it to a  serving platter. Fluff the rice with a fork, spoon it around the  chicken and serve. 