Step 1

Using a sharp knife, slice each chicken breast in half horizontally, being careful not to slice it all the way through. Open the chicken like a book and place it between two pieces of plastic wrap. Pound the chicken to an even thickness and pat dry.

Step 2

Combine the Italian seasoning, garlic powder, salt, MSG (if using), black pepper, and paprika together in a small bowl. Sprinkle the seasoning over the chicken, coating both sides.

Step 3

Let the chicken sit for 30 minutes, or as long as overnight in a covered container in the refrigerator.

Step 4

Heat the oil in a large cast-iron skillet over medium-high heat. Add the chicken breasts and cook for about 5 minutes on each side, until the chicken is browned and crispy and the internal temperature reaches 165°F. Transfer the chicken to a plate and pour the melted butter over the chicken.

Step 5

While the chicken is resting, place the lemon halves cut-side down in the hot skillet until charred, about 3 minutes.

Step 6

Squeeze the lemons over the chicken before serving and top with fresh parsley.