Pat chicken breasts dry with paper towels
Pound to even thickness if needed
Season both sides with salt, pepper, and any desired spices
Heat a skillet over medium to medium-high heat
Add oil or butter to the pan
Place chicken breasts in the hot pan
Cook without moving for 5 to 7 minutes
Flip the chicken breasts
Cook for another 5 to 7 minutes
Reduce heat if the outside browns too quickly
Cook until the internal temperature reaches 165°F
Remove from the pan and rest for 5 minutes
Slice and serve