1cupself-rising flourif you don't have any you can make it by combining 1 cup of all-purpose flour with 1 1/2 teaspoons baking powder and 1/4 teaspoon kosher salt
Whisk together all ingredients in a small bowl. Cover and refrigerate until ready to use.
For the chicken crispers
Whisk the egg, milk, broth, salt and pepper in a medium bowl.
Whisk in the self-rising flour and let rest 5 minutes.
Heat the oil in a deep fryer or Dutch oven to 350 F.
Place the all-purpose flour in a shallow bowl or pie plate.
Working in batches, roll each tenderloin in the all-purpose flour. Shake off any excess then transfer to the batter. Coat well, shake off any excess, then fry 7-9 minutes or until golden brown. Remove to wire rack or paper towel-lined plate to drain.