Cover with water and add salt, lemon and rosemary.
Bring to a boil over medium-high heat with the lid, then reduce the heat slightly to keep it at a slow boil.
Cook for 20 minutes or until the center of a thigh registers 165°F with an instant thermometer.
Allow the meat cool slightly on a cooling rack before enjoying.
Notes
Add the water to about 2" above the top of the chicken.If you are shredding the chicken, remove the pot from the heat once it's done, but leave the chicken in the water for another 5 minutes before removing it.