Preheat the oven to 425°F
Place the chicken breast in a baking dish (to fit)
Any time you touch the raw meat, wash your hands for at least 20 seconds with soap and hot water
Drizzle with olive oil on both sides and rub in
Sprinkle or shake the ranch seasoning mix over the chicken on both sides
Place in the oven and bake for 18–20 minutes
Pull pan out of the oven and use a thermometer to check the temperature of the thickest part
If the internal temperature of chicken HAS NOT reached 165 degrees, place back in the oven and bake another 5 minutes. Clean thermometer between use.
If the internal temperature of chicken reaches 165 degrees, remove it from the oven and lett rest a few minutes before serving