Place each pork cutlet between sheets of parchment and pound evenly to about 1/4 inch thick.
Season both sides with the salt and pepper. Set up separate shallow bowls for the flour, beaten eggs, and breadcrumbs.
Bread the Schnitzel:
Coat each cutlet lightly in flour, shaking off the excess.
Dip the cutlet in the beaten egg, then press it gently into the breadcrumbs. Do not compact the crumbs too firmly; a loose coating fries more lightly.
Fry and Serve:
Heat the oil and butter in a large skillet over medium-high heat. The oil should shimmer and reach about 350°F (175°C).
Fry the cutlets one or two at a time for 2 to 3 minutes per side, gently swirling the pan, until puffed and golden and the pork reaches 145°F (63°C).
Transfer to a wire rack, season lightly with salt, and serve right away with lemon wedges and chopped parsley.
Notes
Do not overcrowd the pan or the breading will absorb oil instead of turning crisp.
Chicken or veal cutlets can be used with the same breading method.
A wire rack keeps the crust crisp while the remaining cutlets cook.