Place three layers of paper towel on a wire rack. Lay slices of cut tomatoes on the paper towel, allowing them to drain. Sprinkle all of the tomato slices with garlic powder.
Allow tomatoes to drain for around 20 minutes in total, flipping them halfway through to remove excess moisture. Prepare a baking sheet by lining it with parchment paper.
In a medium mixing bowl, whisk buttermilk and egg together. In another mixing bowl, combine cornmeal, flour, Parmesan cheese, salt, and pepper.
Dredge each tomato slice in the buttermilk mixture then coat it in the dry ingredient mixture. Place battered tomatoes on your prepared baking sheet until all are done.
Deep Fried Red Tomatoes - Heat oil in a large skillet over medium high heat until it reaches 330 degrees F, where a drop of breading fries immediately but not too quickly where it immediately burns. Add battered tomato slices to your skillet in batches and fry until a golden brown color. This will take 2 to 4 minutes per side. Flip tomatoes with a fork. When done, place tomato slices on a plate lined with paper towel. Serve with basil and lemon wedges and enjoy.
Air Fryer Fried Red Tomatoes - Place battered tomatoes in a greased air fryer basket. Spray tops with olive oil spray. Air fry at 400ºF for 8-10 minutes, flipping halfway through. omato slices are done when they are golden brown. Serve with basil and lemon wedges and enjoy.