Make the seasoning rub. In a shallow plate, combine the flour, garlic powder, salt, oregano, paprika, and pepper; mix to incorporate.
Prep the pork. Pound the pork chops to a 1/4-inch thickness. Spray them with cooking oil and dredge them in the flour mixture.
Heat the butter and oil. Combine the butter and oil in a large 12-inch skillet and heat them over medium heat. Add the pork chops to the heated oil in one single layer. Do not crowd the pan; if the skillet is too small, cook the pork chops in batches.
Cook the pork chops. Cook the chops for 3 to 4 minutes per side or until browned and cooked through. Pork chops are cooked through when their internal temperature reaches 145˚F. Remove the pork chops from the skillet; set aside and keep them covered.
Cook the mushrooms. Lightly wipe down the skillet. Return the skillet to the heat; if the skillet is dry, add a little more oil. Stir in the mushrooms and cook them for 3 minutes over medium heat or until just tender.
Add the garlic and liquids. Stir in the garlic and continue to cook for 1 minute. Increase the heat to medium-high. Add the chicken broth and scrape up all the browned bits from the bottom of the skillet. Bring to a boil and cook for 1 minute. Pour in the Marsala wine and add the salt; stir until smooth. Cook for 2 minutes.
Make the slurry. Meanwhile, in a small mixing bowl, combine the water and cornstarch and mix until well combined. Whisk the cornstarch slurry into the skillet until combined. The sauce will start to thicken.
Add the heavy cream. Whisk in the heavy cream and continue to cook for 1 to 2 more minutes or until thickened and creamy. Taste for salt and adjust accordingly. If the sauce is too thick, whisk in a little more chicken broth. To make it creamier, add more heavy cream.
Combine. Return the pork chops to the skillet and spoon the sauce over the pork chops.
Finish and serve. Garnish with freshly ground black pepper and parsley, and serve. Add a splash of lemon juice for freshness to counterbalance the rich sauce.
Notes
Cream Sauce: This recipe makes plenty of sauce, so you can safely use up to 6 pork chops.