Place the shredded chicken in a bowl, and pour the Franks hot sauce over. It will take about ¾ cup of completely soak the chicken, but you might want to use less sauce if you want to make a more mild dip. Plus, you can always add more hot sauce later.Heat the milk in a saucepan over medium heat. Whisk in the flour until it is completely incorporated. Bring the milk and flour mixture to a slow boil, while whisking frequently. Once the mixture boils, stir constantly, letting the sauce thicken for 1 minute.Add the cheese to the sauce, and stir until melted. Then season with salt and pepper to taste. Reduce the heat to low.Stir the chicken into the sauce. Taste the sauce and add more hot sauce if you like.Pour the dip into a bowl, top with the blue cheese, and serve immediately with some dips. Or if you aren't serving the dip right away, keep the dip warm in a 300 degree oven, and add the blue cheese once you are ready to serve.