• Add chicken, ranch dressing mix, Montreal seasoning and red pepper flakes to a large zip top bag. Gently mix together making sure chicken is coated with ingredients. 
• Heat oven to 400 degrees. 
• Drizzle olive oil on to a sheet pan. Place chicken skin side down on pan. Add onion around chicken. Place in oven and cook for 30 minutes. Flip chicken and continue to cook until internal temperature reaches 160 degrees about 10 more minutes. Turn oven to broil and cook until chicken skin is slightly charred - approximately 2 minutes.
• Remove from oven and let rest for 5 minutes.

***Cooks Notes***

• If prepping ahead, store chicken in fridge until ready to cook.