It's important to thaw chicken safely, or if you don't have time, cook it when it's still frozen. The fastest way to thaw chicken breast is in the microwave, but you need to cook it immediately if you choose this method. Microwaves heat the chicken to a temperature at which bacteria thrive, so you need to cook the breasts to kill any pathogens.  You can also thaw chicken breasts using cold water by placing them in a leak-proof plastic bag. Fill a bowl or the sink with cold water, and submerge the bagged chicken. Change out the water every 30 minutes until the chicken thaws. The safest way to thaw chicken breast is in the refrigerator. It takes longer than the other methods, but it is safer. Use the Instacart app to shop for chicken breast and get it delivered to your home in as little as 2 hours!