Step 1

Preheat oven to 350 degrees F (175 degrees C). Line a baking sheet with aluminum foil and spray with cooking spray.

Step 2

Arrange chicken thighs on prepared baking sheet.

Step 3

Combine garlic salt, onion salt, oregano, thyme, paprika, and pepper together in a small container with a lid. Close the lid and shake container until spices are thoroughly mixed. Sprinkle spice mixture liberally over chicken thighs.

Step 4

Bake chicken in the preheated oven until skin is crispy, thighs are no longer pink at the bone, and the juices run clear, about 1 hour. An instant-read thermometer inserted near the bone should read 165 degrees F (74 degrees C).