Spray nonstick cooking spray onto a baking sheet and set oven temperature to 350ºF.
Place the chicken breasts in the oven. The chicken breasts should not touch, so be sure to stretch them widely.
Add salt and pepper to the chicken breasts before coating them with olive oil.
After 25–35 minutes of baking, or until the chicken reaches an internal temperature of 165ºF, transfer it to the oven.
After taking the chicken out of the oven, let it aside to cool for a few minutes.
You may use a hand blender or two forks to shred the chicken.
NOTES AND TIPS
*Do not use enormous 1 pound chicken breasts; this recipe calls for 4 to 6 medium-sized breasts. The chicken breasts' size is a major factor in determining the cooking time. Cooking time is directly proportional to breast size.