Preheat the oven to 400°F (200°C)
Pat the chicken breasts dry
Place the chicken breasts on a baking sheet or in a baking dish
Brush or rub with oil
Season with salt, pepper, and any desired spices
Bake for 18 to 25 minutes, depending on thickness
Check that the internal temperature reaches 165°F (74°C)
Remove from the oven
Let the chicken rest for 5 to 10 minutes
Slice and serve