Season the chicken thighs on both sides with salt, black pepper, oregano, chili powder, and cumin
Heat the large sauté skillet on high, 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 and place in the slow cooker, repeat the process with the remaining chicken
Once all of the chicken is seared, add some of the enchilada sauce to the skillet to deglaze any browned bits.
When the liquid has come to a boil, pour enchilada sauce over the chicken in the cooker, scraping the pan clean.
Add all of the remaining enchilada sauce to the slow cooker.
Add all of the remaining ingredients from this step of the recipe to the slow cooker.
Set the cooker to high for four hours.