Loosen the skin from the meat to create a small pocket.
Slip the butter under the skin.
Rub the chicken with olive oil, then season with salt, pepper, and thyme.
When the pan is hot, place the breast skin side down. Do not touch or move the breast for about three minutes, or until the skin has a nice golden brown crust.
Place the breast on a baking sheet and put it into the oven for 15 minutes.
After 15 minutes, check with a meat thermometer (160F), poke it with a fork to see if juices run clear, or leave your fork in for 30 seconds and test it on your hand to see if it's hot. If it fulfills any of the 3 above, take it out, let it sit for 5-10 minutes so the juices won't run out when you cut it.
Optional-use wine to deglaze the pan you used on the stove to make sauce! just pour in wine till the bottom is covered, cook on medium until you can drag a spoon through it and see the bottom for a couple seconds. add salt and pepper to taste.