Preheat the oven to 425°F (220°C)
Pat the chicken breasts dry
Place the chicken breasts on a baking sheet or in a baking dish
Drizzle 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