In a wide shallow bowl or pie plate, stir together the panko, herbs, parmesan, and salt and pepper to taste.

In another bowl, crack the eggs, add a pinch of salt and pepper and lightly beat with a fork.

In a third bowl, stir together the flour and a large pinch each of salt and pepper.

Line a baking sheet with a double layer of paper towels.

Heat the oil in a large, heavy skillet over a medium-high flame. Add the butter. In the meantime, coat one of the chicken breasts with the seasoned flour, shaking off any excess. Dip the breast in the egg mixture, and then in the breadcrumbs, pressing them lightly so that they adhere. Set on a plate and repeat with other chicken breast.

When the butter just starts to turn brown, gently lay both of the chicken breasts in the pan, side by side. Cook for 2 to 3 minutes, until the bottom is golden brown and crispy. Gently turn the chicken over and cook for another couple of minutes, until both sides are evenly browned.

Remove the chicken and let it drain on the paper-towel lined baking sheet for a minute or so.

Serve immediately, ideally with mashed potatoes and something green.