In a bowl whisk buttermilk and egg together.
In another bowl mix flour, garlic powder, paprika, salt, and black pepper.
Dip chicken tenders into the buttermilk mixture.
Coat each tender in the seasoned flour mixture.
Heat oil in a skillet or deep fryer to about 350°F (175°C).
Fry chicken tenders for 5–7 minutes until golden and fully cooked.
In a small bowl mix hot frying oil, cayenne pepper, brown sugar, and chili powder.
Brush the spicy oil mixture over the fried chicken tenders.
Serve hot with pickles or bread.