01 - Combine cilantro leaves, jalapeños, garlic, mayonnaise, sour cream, cotija cheese, lime juice, olive oil, salt, and pepper in a blender. Blend until completely smooth and creamy. Transfer to a container and refrigerate until serving.
02 - Pat chicken thighs dry with paper towels. Season generously on both sides with salt, black pepper, and ground cumin, rubbing the spices into the meat.
03 - Heat olive oil in a large skillet or Dutch oven over medium-high heat until shimmering. Add seasoned chicken and sear for 3–4 minutes per side until deep golden brown. Remove chicken from pan and set aside on a plate.
04 - Reduce heat to medium. Add chopped onion, minced garlic, and diced red bell pepper to the same pan. Sauté, stirring occasionally, until vegetables are softened and fragrant, about 4 minutes.
05 - Add rice to the pan and stir constantly for 1–2 minutes until grains are coated with the aromatic mixture and lightly toasted. Meanwhile, blend the fresh cilantro with ½ cup chicken broth until smooth.
06 - Pour the cilantro broth mixture into the rice. Return seared chicken to the pot, arranging pieces on top of the rice. Add remaining chicken broth. Bring to a boil, then reduce heat to low, cover tightly, and simmer for 20 minutes.
07 - Remove lid and scatter frozen peas over the rice. Stir gently to distribute. Cover again and cook for 5–7 additional minutes until rice is tender, liquid is absorbed, and chicken reaches an internal temperature of 165°F.
08 - Remove from heat and let stand covered for 5 minutes. Fluff rice with a fork, incorporating the peas. Serve chicken over the flavorful rice, topped with generous spoonfuls of the chilled Aji Verde sauce. Accompany with fresh lime wedges for squeezing.