heat oven to 350 degrees
line the surface of the sheet pan with foil and lightly spray with non stick
season smooth side of chicken breast/s thoroughly and evenly, patting lightly to coat
allow chicken breasts to sit for about 2 minutes to let seasoning "stick"
in the meantime, heat skillet over high heat until very hot, about 2 minutes
add oil to pan, allow to heat through until almost smoking, about 30 seconds
carefully add chicken breasts to pan, seasoned side down, laying them in away from hand and body
allow them to cook patiently, do not touch or attempt to flip them until the edges become opaque and you can see the fat seep out in white streams
flip over, allow to sear on opposite side for another 30 seconds
remove the chicken from the skillet with tongs, place on sheet pan
cook in oven on middle rack until the thickest part reads 165℉ with the thermometer, about 10 to 15 minutes