Season the pork chops with salt and pepper on both sides.
Heat olive oil in a large skillet over medium-high heat.
Sear the pork chops for 3-4 minutes on each side until golden brown.
Remove the chops and set aside on a plate.
Add the sliced onion and minced garlic to the skillet.
Stir in the apple cider and Dijon mustard, scraping the bottom of the skillet to deglaze.
Add the thyme leaves and return the pork chops to the skillet.
Bring the liquid to a simmer, cover, and reduce the heat to low.
Braise the chops for about 30-40 minutes, until tender.
Remove the chops and let rest briefly before serving.
Serve the chops with the reduced sauce drizzled over the top.