Begin by patting the chicken breasts dry and seasoning them with salt and pepper. Pound the chicken to an even thickness using a meat mallet or a rolling pin for even cooking.
Set up a dredging station with three shallow dishes. One for the flour, one for the beaten eggs, and one for the Panko breadcrumbs.
Dip each chicken breast into the flour, shaking off any excess. Next, dredge it through the beaten eggs, ensuring it's well-coated. Finally, coat the chicken in Panko breadcrumbs, pressing lightly to make sure they adhere.
Heat a generous amount of vegetable oil in a large frying pan over medium heat. You want enough oil to come halfway up the sides of the chicken, but not more than that to avoid unnecessary greasiness.
Carefully place the breaded chicken in the hot oil, frying for about 3-4 minutes on each side until golden brown and the chicken is cooked through.
Using tongs, remove the chicken from the oil and place them on a plate lined with paper towels to absorb any excess oil. This is the key to maintaining that beautiful, crunchy exterior without the oiliness.
Serve your Chicken Katsu sliced, perhaps with a side of rice and a drizzle of tonkatsu sauce if you'd like.