White cut chicken can be heated up the next day in the following ways:

1. Heat up in microwave: put the white cut chicken into microwave and heat it up for 30 seconds to heat it up easily.

2. Fry in oil: Place the white cut chicken in a pan with a small amount of oil and fry over medium heat, usually heated for 5 to 7 minutes, the white cut chicken will be back to warm.

3. Reheat in Oven: Place the white cut chicken in the oven, preheat to 350 degrees Fahrenheit (about 176 degrees Celsius), and heat for 15 to 20 minutes for the white cut chicken to return to warmth.