Karen's Sweet and Sour Chicken

4 boneless skinless  Chicken breast
1 Cup Ketchup
2/3 Cup Sugar
4 Tablespoons Soy Sauce
1 Cup Chicken Broth

1 Egg
1 1/2 cup flour with salt and pepper

Beat egg well..dip chicken in to egg then into flour. Put chicken in a 9x12 greased pan.
Mix the first 5 ingredients together.  Pour over Chicken, cover with foil. Bake at 300 for 3 hours