The sauce…I’m half afraid to tell you what it’s made of, just keep an open mind OK? The sauce is made of mayonnaise and chicken broth. Trust me, it will make the chicken and peppers amazing! This is the way you want to go for chicken in white sauce! Just think for a minute about the things we use to make sauces with…sour cream, cream, sometimes sauces call for cream cheese or cheeses. They all have fat in them! We just don’t think about using mayonnaise on anything but sandwiches. Not anymore! Now we have the secret key to amazing chicken and peppers, and we have the secret to chicken in white sauce.