Slice each chicken breast lengthwise. Take the four chicken breasts and pat them dry.
Mix all the spices together and rub the chicken breasts with the mixture.
Add the olive oil to a cast iron pan or heavy bottomed pan and heat to medium high heat. Once pan is very hot, add the chicken and cook 4-5 minutes per side or until center of chicken is 165℉. Let chicken rest for a few minutes before slicing.
Notes
This seasoning calls for 1/2 teaspoon of cayenne pepper which yields a 4/10 on the spicy scale in my opinion. You can adjust more or less to your taste.