Preheat the Oven – Set the oven rack to the middle position. Preheat to 425ºF (218ºC). Line a rimmed baking sheet with foil. Lightly grease with oil to prevent sticking.
Flatten the Pieces – Thoroughly dry each chicken breast with a paper towel. Place one breast between two plastic sheets or inside a large plastic bag and use a meat tenderizer to pound to an even thickness, about ¾" thick. Repeat with the remaining pieces.
Season the Surface – In a large bowl, combine olive oil, salt, paprika, garlic powder, onion powder, and black pepper. Add the chicken to the seasoning mix. Turn to coat evenly.
Add Barbecue Sauce – Add ½ cup of the barbeque sauce. Turn to coat evenly. Transfer the chicken to the greased baking sheet.
Bake – Bake for 10 minutes, then brush the remaining barbecue sauce on the surface. Continue baking until the internal temperature reaches 160 to 165ºF (71 to 74ºC) on a meat thermometer, about 4 to 7 minutes.
Serve – Rest the chicken for 5 minutes before slicing and serving. If desired, serve with additional barbecue on the side.
Notes
Storing:The chicken can be stored in an airtight container in the refrigerator for up to 5 days.
Freezing:Individually wrap the cooked chicken breasts. Store in a resealable plastic bag or airtight container for up to 4 months. Defrost in the refrigerator before reheating. Add more sauce when serving.
Reheating:Cover and microwave on high setting in 15 to 30-second increments until hot.