First things first, get your oil ready. Pour the vegetable oil into a heavy-bottomed pot or a deep fryer. You want about 1 to 1.5 inches of oil. Heat it over medium-high heat until it reaches about 365°F (180°C). If you don't have a thermometer, you can test it by dropping a tiny bit of batter in – it should sizzle and float right up within a few seconds.
While the oil heats, let's make the batter. In a large bowl, combine your thinly sliced okra, garlic powder, finely chopped onion, and fresh parsley. Give it a good stir to mix everything up.
In a separate medium bowl, whisk together the egg, buttermilk, and sugar until well combined.
Now, add the wet ingredients (the buttermilk mixture) to the bowl with the okra mixture. Stir it just until combined.
In a third bowl (or just add to the okra/wet mixture bowl if it's big enough!), whisk together the self-rising cornmeal mix, salt, and black pepper. Pour the dry ingredients into the wet ingredients.
Stir everything together just until the dry ingredients are moistened and you have a thick batter. Be careful not to overmix!
Now for the fun part: frying! Carefully drop spoonfuls of the batter into the hot oil. I like to use a small cookie scoop or two spoons. Don't overcrowd the pot – fry in batches so the oil temperature doesn't drop too much. Fry for 2-3 minutes per side, or until they are golden brown and cooked through.
Use a slotted spoon to remove the hush puppies from the oil and place them on a plate lined with paper towels to drain off any excess oil. Cook the remaining batter, making sure the oil stays at the correct temperature between batches.
Serve them hot and enjoy those crispy, tender bites of Southern goodness!