Season pork chops with salt and pepper on both sides. Let them rest for 15 to 20 minutes (or alternatively season overnight, refrigerated). Use about ½ teaspoon of Kosher salt and a few grinds of pepper per pork chop. Tip: In this step, we are “quick dry-brining” the pork with salt. This will keep it juicy and tender.
In a large skillet, heat some olive oil over medium high heat. Cook the pork chops, about 5 minutes per side, until fully cooked through or until internal temperature reaches 150 degrees F (it will finish cooking later). Remove from pan and set aside. Note: Bone-in pork chops may take an extra 2 minutes to cook, especially around the bone.
In the same skillet, melt 2 tablespoons of the butter over medium heat. Cook the sliced onions, stirring occasionally, until softened, about 12 to 15 minutes. Tip: try not to stir too often so that the onions have a chance to caramelize.
Then, add the minced garlic, rosemary and thyme. Cook for another 1 to 2 minutes, stirring, until fragrant.
Stir in the remaining 1 tablespoon of butter, dijon mustard, chicken broth, and apple cider until incorporated. Scrape the brown bits with a wooden spoon.
Add the apples, and simmer for about 5 to 7 minutes, until softened but still crisp. Season with more salt and pepper to taste, if needed. At this point, the sauce should slightly thicken, but still be relatively thin. If needed, more liquid (equal parts broth and cider) until desired consistency.
Return the cooked pork chops to the pan, nesting them under the apples. Simmer for another 2 minutes over low heat. Serve immediately. Enjoy!