Rinse the basmati rice under cold water until the water runs clear. Drain and set aside.
In a large skillet or pot, heat the olive oil over medium-high heat. Season the chicken thighs with salt, pepper, cumin, paprika, and turmeric.
Once the oil is hot, add the chicken thighs, skin-side down. Sear them for about 5-7 minutes until golden brown, then flip and cook for an additional 5 minutes. Remove the chicken from the skillet and set aside.
In the same skillet, add the chopped onion and garlic. Sauté for 2-3 minutes until softened and translucent.
Add the sliced bell pepper and aji amarillo paste to the onion and garlic mixture. Cook for another 2 minutes to release the flavors.
Stir in the rinsed rice and mix well to coat it in the aromatic mixture. Cook for 1-2 minutes, stirring frequently.
Pour in the chicken broth and bring the mixture to a boil. Once boiling, reduce the heat to low, return the chicken thighs to the pot (skin-side up), and cover with a lid.
Allow the rice to simmer for about 20-25 minutes, or until most of the liquid is absorbed and the rice is tender. In the last 5 minutes of cooking, sprinkle the frozen peas over the top and re-cover the pot.
After the cooking time is completed, remove the pot from heat and let it sit covered for an additional 5 minutes.
Fluff the rice with a fork, remove the chicken thighs, and check for seasoning. Adjust salt and pepper as needed.
Serve the chicken and rice on a platter, garnished with fresh cilantro and lemon wedges on the side.
Notes
Adjust the aji amarillo paste to taste for spiciness.