Preheat the oven to 400°F (200°C)
Pat the chicken breasts dry with paper towels
Place the chicken breasts on a baking sheet or in a baking dish
Brush or rub the chicken with oil
Season with salt, pepper, and any desired spices
Bake for 20 to 30 minutes, depending on thickness
Check that the internal temperature reaches 165°F (74°C)
Remove from the oven and let rest for 5 to 10 minutes
Slice and serve