Rinse the chicken breasts under cold water and pat them completely dry using a paper towel.
In a small bowl, mix together the salt and pepper.
Place the chicken breasts in an 8x8-inch baking dish. Use a silicone brush to coat both sides with olive oil, then season evenly with your salt and pepper mixture. Flip the chicken and repeat.
Bake the chicken uncovered for 18–20 minutes, or until a meat thermometer inserted into the thickest part reads 165°F (74°C). For a crispier top, broil for an additional 3–5 minutes at the end.
Carefully remove the baking dish from the oven and cover loosely with cooking foil. Let the chicken rest for 5–10 minutes to lock in the juices before slicing or serving.