To prepare a cast iron skillet sweet and sour pork chops recipe, first you will need to prepare your ingredients. First, you'll need: 1 1/2 lbs. boneless, skinless pork tenderloin, 2 tbsp. kosher salt, 1/2 cup ketchup, and 2 tablespoons molasses. You will also need 1 pound rotisserie chicken. Cut the pork into 1-inch thick slices. Place the slices in the skillet and cook over medium-high heat, turning occasionally, until the meat is no longer pink. Remove from the heat and set aside to rest for 5 minutes before serving.