Pre-heat oven to 350°F.
Place flour in a rimmed plate. Mix in garlic powder, salt, pepper, paprika, and cornstarch.
Season the chicken lightly with salt. One chicken breast at a time, place the chicken into the flour mixture. Press the mixture to the chicken until it is completely coated.
In an oven safe skillet, heat the butter and olive oil over medium-high heat. Add the chicken and cook for about 3 minutes on each side. The chicken should become golden brown. If the chicken begins to scorch reduce the heat.
Remove chicken from the pan. Place onion and apples into the pan and cook for about 3 minutes. Add the apple cider and stir into the onions and apples.
Place the chicken back into the pan and nestle is in the onion and apple mixture.
Place the skillet into the oven and bake for 20 minutes. After 20 minutes, remove the skillet from the oven and check the chicken's internal temperature with a meat thermometer. The internal temperature should be 165°F.
Serving suggestion is garlic mashed potatoes and green beans.