Traditional Indiana Breaded Tenderloin Sandwich

Flatten pork slices, one at a time, by placing in between two pieces of sturdy plastic and pounding with a meat mallet until 1/4-inch thick and about 3 1/2×5 inches in size. Whisk egg and milk together in a shallow bowl; stir in salt, pepper, garlic powder, onion powder, seasoned salt, marjoram, and oregano until…