Place 2 cups of flour into a shallow bowl, or pie plate. Stir stir together the baking powder, baking soda, pepper, and salt in a separate shallow bowl; stir in the buttermilk, egg, hot sauce, & garlic powder. Dredge each steak first in the flour, and then in the batter, and again in the flour. Pat the flour onto the surface of each steak so they are completely coated with dry flour.