4 lettuce leaves
Preheat 6 to 8 cups of oil in a deep fryer to 350 degrees. Combine the pepper sauce(Franks Hot Sauce) and water in a small bowl.
Working with one fillet at a time, coat each piece with the flour, then dredge it in the diluted pepper sauce. Coat the chicken once again in the flour mixture and set it aside until the rest of the chicken is coated. Fry the chicken fillets for 8 to 12 minutes or until they are light brown and crispy. Remove the chicken to a rack or to paper towels to drain.
As chicken is frying, prepare each sandwich by grilling the face of the hamburger buns on a hot skillet over medium heat. Spread about 2 teaspoons of mayonnaise on the face of each of the inverted top buns.