In a slow cooker whisk the hot sauce, butter, garlic powder and black pepper together. Season the chicken with salt and add it to the pot. Cook on high 4 hours or low 6 - 8 hours.
Remove the chicken to a cutting board. Pour the sauce into a medium saucepan and add the broth. Bring it to a simmer and cook for 5 minutes.
Whisk the cornstarch into the half & half until dissolved and then slowly whisk it into the sauce. Cook 2 - 3 more minutes, whisking often. Remove from heat.
Chop the chicken into bite-sized pieces and add to a bowl with the corn, ½ cup of the cheese and about ½ cup of the sauce. Mix it together and season to taste with salt and pepper.
Preheat the oven to 400 degrees F. Butter a 9x13-inch casserole pan. Cover the bottom with sauce.
Heat a frying pan over medium-high heat and working one at a time heat the tortillas briefly on each side until warm and pliable. Add a scant ⅓ cup of the filling to each one and roll it up. Line them up in the casserole dish.
Pour the sauce over them and sprinkle with the remaining cheese. Bake 25 minutes.
Serve on a bed of lettuce with a sprinkle of blue cheese, sour cream, green onions and any other toppings you like.