The chicken should be removed from the refrigerator 15 or 20 minutes before baking.
With the baking tray in the oven, set the oven temperature at 220 C (425 oF) to preheat.
Eliminate the excess fat by trimming it with a sharp knife and then drying it with a paper towel. Mix the onion powder, garlic powder, paprika, pepper, salt, and seasoning in a bowl.
Then, place the chicken in a bowl, brush it with oil, and season with the mixed spices. You can also mix the sauce recipes in a bowl and toss the chicken into it (this is optional). After, hand mixes the spices into the boneless chicken properly.
Transfer the seasoned chicken to the lined baking tray in a smooth single-layer arrangement. Boneless chicken thighs are quick to bake. Turn on the heat and bake for about 20 minutes, or monitor the baking process with your meat thermometer to check for an internal temperature of 165 oF.
After checking, if the chicken is still not ready, leave it to continue baking and ensure to check it every 3 to 5 minutes.
Then, remove the tray from the oven, cover the just-baked chicken with parchment paper or aluminum foil, and allow the chicken to rest for about 7 minutes. This will distribute the juice evenly and make it softer, so you can eat and enjoy a deliciously baked boneless chicken thigh!