Fill one small pot with all the ingredients under the "To Boil" section. Bring to a boil and remove from heat.
Fill a large measuring cup with ice and cold water up to the 2L. Add this to a pot or vessel large enough to fit a chicken in.
Combine the ice water with the boiled ingredients and stir to combine. Check the temperature to make sure it's not warm. If it's still warm then you will need to let it cool completely in the fridge before adding the chicken.
Once the liquid has cooled, add the chicken to the pot. Make sure the entire bird is submerged.
If the chicken meat is not completely submerged then use a plate to weigh it down.
Refrigerate the chicken in the brine overnight or for up to one day.
Remove the chicken from the brine and let dry on paper towels in the fridge for up to 3 days. Discard the leftover brine.