Flatten chicken breast and make sure they are even throughout. Coat with flour (optional) and salt and pepper. Heat sauté pan to medium high heat. Add a couple teaspoons of olive oil. Turn down pan to medium and immediately add chicken breast. Cook 1 minute without moving chicken (not quite a sear/browning). Flip chicken breast. Turn heat down to low and cover pan tightly. Cook for 10 minutes without lifting lid. Remove pan from heat and let sit for 10 more minutes, without ever lifting lid (peeking will ruin it!). Your chicken should be done. You can cut them in half or take their temperature to be sure. This has worked really well for me and is relatively easy, time-wise.