Place the chicken breasts in a large saucepan.
Add the water, salt, black pepper, bay leaves, and lemon slices.
Bring the mixture to a gentle simmer over low heat.
Cover the saucepan with a lid.
Allow the chicken to poach for about 15 to 20 minutes until cooked through.
Use a meat thermometer to check for an internal temperature of 165°F.
Remove the chicken breasts from the saucepan.
Let them cool on a cutting board for a few minutes.
Slice or shred the chicken as desired.
Adjust seasoning with additional salt and pepper if necessary.