1/2 cup (about 2 7/8 oz.) fine yellow cornmeal
1/4 cup all-purpose flour
3/4 teaspoon garlic powder
1/2 teaspoon paprika
1 teaspoon kosher salt, divided
1 large egg, lightly beaten
2 teaspoons water
8 ounces fresh okra, cut into 1/2-in.-thick rounds
1/2 cup bottled white barbecue sauce
Stir together cornmeal, flour, garlic powder, paprika, and 1/2 teaspoon of the salt in a shallow dish. Whisk together egg and water in a separate shallow dish.
Preheat air fryer to 400°F for 3 minutes. Meanwhile, dip half of the okra in egg mixture; remove okra, letting excess drip off, and transfer to cornmeal mixture, tossing to fully coat. Transfer coated okra to a plate. Repeat process using remaining okra.