Defrost the chicken in the fridge (it can take around 2 days), then allow it to stand uncovered out of the fridge for no more than half an hour before cooking. A large chicken (around 1.5kg/3lbs ...
Remove the chicken from the poaching liquid and place on a board to cool. Season with salt and pepper, then slice and pack into a lunchbox ... add the chicken breast and cook for 5 minutes ...
The internet will smother you with the secret recipe for flavoring ... For example, I basically match my chicken to pickle ratio, ounce-for-ounce. Have some fun with it and add a slice of pepper ...