Pre heat oven to 450 degrees
In a small bowl mix sage, thyme salt, pepper, garlic and butter together until well blended. Set aside.
In the bottom of a 12-inch cast iron skillet spread out onion and lemon slices to cover the pan.
Place chicken into skillet, breast side up- pat dry with paper towels. Using clean fingers or a pastry brush, spread herb, garlic & butter mixture all over the chicken covering every part.
Place skillet in oven and roast for 30 minutes. After 30 minutes, gently pour wine & lemon juice into skillet, but do not pour onto the chicken. Reduce heat to 375 and roast for another 20 minutes or until a meat themometer inserted into the thighs registered 165 degrees.
Remove chicken and let rest for 15 minutes. Do not cover or else the skin will not stay crispy.
Cut chicken into quarter pieces and serve with onions, pan juices and crusty bread or cornbread. You can place the skillet on your table with a trivet and enjoy the extra juices with more bread.