Preheat oven to 375
Heat butter and olive oil over medium-high heat in an oven-safe skillet.
Generously coat chicken with salt and pepper. (remove skin if you want)
Put the seasoned chicken in the hot skillet.
Brown on both sides, then remove chicken from the pan. Cooking Tongs make this easy
Lower the heat, add more butter and olive oil if needed and sauté onions, season with salt and pepper and cook until they are translucent.
Add garlic, rosemary, and thyme, and cook for another 2-3 minutes.
Deglaze the pan with chicken stock.
Add chicken back to the pan and while it's cooking add a sprinkle of fresh herbs on top.
Transfer chicken into the oven, cooking for about 30-45 min depending on the size chicken you choose.
Halfway through, flip the chicken.
Place chicken on a serving plate and spoon sauce over chicken.
Enjoy!