season the chicken thighs on both sides with salt, black pepper, oregano, chili powder, and cumin
heat the 6-8 quart sauce pan, add the olive oil
add the chicken 3 pieces at a time, as to not crowd the pan
sear the chicken, controlling the heat so you don't burn it, turn over creating a brown delicious crust on both sides
remove the first 3 pieces add place on a plate to rest, repeat the process with the remaining chicken
reduce the heat and add the onion, jalapeño, and cilantro to the pan
season to taste with salt and black pepper
return the chicken to the pan with any juices that have developed on the plate
add the 2 cans of enchilada sauce and stir
reduce heat to a simmer and let cook for 30 minutes