In a large bowl combine the ground chicken, garlic powder, onion powder, mustard, ½ teaspoon salt, 1 teaspoon black powder and ½ teaspoon paprika.
Shape chicken mixture into 4 patties and freeze on a parchment paper-lined baking sheet for 30 minutes.
In a large high walled skillet heat oil to 375 degrees.
Whisk together flour, cornstarch, remaining salt, remaining paprika, and pepper in a bowl.
Lightly coat the patties in the flour mixture and set patties aside.
Add the club soda to the remaining flour mixture and whisk to combine.
Dip patties into batter and carefully place into the hot oil.
Fry until golden brown and cooked through about 5 to 6 minutes per batch flipping if needed.
Drain on a wire rack.
Serve patties on buns with shredded lettuce and mayonnaise.