Cut a 1lb chunk of boneless pork loin in half. Butterfly each half like so. Season with salt, pepper, and garlic powder.
With a mallet, hammer down the pork loin to 1/4” thick. As you can see in the pic, the pork has doubled its surface are compared to the one that’s not hammered.
Hammer all over on both sides at least twice.
Dredge each of the pork cutlets in flour.
Dip the cutlet in the beaten egg, the the panko breadcrumbs.
Heat up cooking oil in a large sauté pan over medium high heat. Unless you have a gigantic as fuck sauté pan, you’re going to have to cook these one at a time. Cook for 4 minutes.
Flip. Cook for another 4 minutes. Drain on paper towel.
In a small pot over medium high heat, melt the butter. Add the onions. Cook for 5 minutes.
Add in the flour. Constantly whisk.
Mix together in another bowl, the Worcester sauce, ketchup, chicken stock, whole milk, and sugar. Add it to the roux. Whisk for 2 minutes until it thickens.