Preheat oven at 350℉.
In a medium sized bowl, add brown sugar, paprika, garlic powder, thyme, and rosemary. Mix well.
Drizzle olive oil over chicken breasts to coat evenly.
Add chicken breasts to the bowl with the spice mixture, and evenly coat the chicken breasts.
Line a sheet pan with parchment paper.
Add seasoned chicken breast to the sheet pan, and bake in the oven for 30 minutes, or until chicken is fully cooked through to an internal temperature of 165℉.
Slice chicken breasts and enjoy!
