Add a neutral oil like olive oil to the pan and disperse in the pan.
Put chicken breast into pan and allow to sear for 2-3 minutes.
Then flip and reduce the heat.
Add 2 tbsp of unsalted butter to the pan and begin basting the chicken. Do this for ~2 minutes.
Then continue to cook the chicken at this reduced heat in the pan for ~5-10 minutes or until the thickest part of the breast meat is ~155F.
Once at temperature take off to rest for ~5 minutes, then slice and enjoy!