Slice each chicken breast horizontally into thin cutlets. You should be able to get about 4 thin cutlets from each breast. Place each slice into a large heavy-duty zip-lock bag and gently pound to an even ¼-inch thickness. Pat the chicken dry with paper towels so the coating sticks better.
Place 2 cups of flour in a large bowl that has a lid. Add all the cutlets to the bowl, then seal the lid. Shake the bowl until all the cutlets are coated with flour on both sides. Remove each cutlet, shaking off the excess flour, and place them on a tray or in a 9x13 baking dish.
In a shallow bowl, whisk together 3 eggs, 2 tablespoons of white wine, ½ teaspoon kosher salt, ½ teaspoon of black pepper, and 2 teaspoons of garlic powder until smooth.
In another shallow bowl, stir together 1 cup of Italian breadcrumbs, 1 cup Italian Panko, 1 cup of Parmesan cheese, and the remaining ½ teaspoon kosher salt.
Dip each piece of chicken into the egg mixture, letting excess drip off, then press firmly into the breadcrumb mixture to get a good, even coating. If you want an extra-crisp crust, place breaded cutlets on a tray in the fridge for 30 minutes before frying.
Heat your oil in a large skillet over medium heat to around 325°-350°F until it shimmers. To test, drop in a pinch of breadcrumbs; if they sizzle steadily, it’s ready. Add cutlets in a single layer without crowding the pan. Cook for 2-3 minutes per side, or until golden brown and the internal temperature reaches 165°F. Adjust the heat as needed so the coating browns evenly without burning. If your cutlets are thicker, they may need more time.
Transfer cutlets to a wire rack set over a baking sheet to drain so both sides stay crisp. Let rest for 2–3 minutes before serving to allow juices to settle.
Enjoy warm with a squeeze of fresh lemon or alongside pasta, with a salad, or tucked into a crusty sandwich roll with your favorite sauce.