Season the cutlets with 1 teaspoon salt and 1/2 teaspoon pepper and let them stand for 10 minutes.
Combine 1 1/4 cups flour with the garlic powder in one pan and whisk the eggs with 1/2 cup milk in another.
Coat each cutlet in flour, egg mixture and flour again, pressing firmly so the second coat adheres.
Heat 1/2 inch canola oil in a cast-iron skillet to 350°F and fry two cutlets at a time for 3 to 4 minutes per side until 165°F.
Drain the chicken on a rack and carefully pour off the oil, leaving 3 tablespoons and the browned crumbs in the skillet.
Whisk in the remaining 1/4 cup flour and cook for 1 minute until tan, then slowly whisk in the broth and remaining 1/2 cup milk.
Simmer the gravy for 4 to 5 minutes until it coats a spoon, season with the remaining salt and pepper and serve it under the chicken so the top crust stays crisp.