Get a large bowl and add one tablespoon of oil with the rest of the ingredients except the chicken, onion, and jalapenos
Mix well and then add the thighs, ensuring that each piece of chicken is covered with the spice rub.
Add the chicken to a large baking dish and add the onions and jalapenos. Place in the preheated oven with the remaining tablespoon of oil and bake chicken thighs for 20-25 minutes.
At this point, set your oven to broil on high temperature and cook for 3-5 more minutes until you have crisp skin that is golden brown. Remove from oven and serve.