To cook boneless chicken thighs in the oven:

• Preheat the oven to 400°F (204°C) or 425°F (218°C).
• Arrange the boneless chicken thighs in a single layer in a baking dish or on a baking sheet.
• Season or marinate as desired.
• Bake uncovered until the internal temperature reaches 165°F (74°C). This typically takes:
  • About 25 to 30 minutes at 400°F.
  • About 20 to 25 minutes at 425°F.
• For unrolled boneless skinless thighs, baking time is around 18 to 20 minutes.
• Allow the chicken to rest after cooking for juiciness.

These times may vary slightly depending on the size of the thighs and your oven. Using an instant-read thermometer ensures they are perfectly cooked but not overdone.