1. Step
Place chicken between 2 sheets of plastic wrap and pound to 1/2-inch thickness. Sprinkle the chicken evenly with salt. Whisk egg and water together in a shallow dish. Place flour in a separate shallow dish; place panko in a third shallow dish. Working with 1 breast at a time, dredge the chicken in the flour; shake off excess. Dip in the egg wash; let excess drip off. Dredge in the panko, pressing to evenly coat. Place the breaded chicken on a plate.