Season the pork: Pat the pork chops dry with paper towels. Season both sides generously with salt and pepper.
Sear the chops: Heat olive oil in a large skillet over medium-high heat.
Add the pork chops and sear 3–4 minutes per side until golden brown. Transfer to a plate. They don’t need to be fully cooked yet.
Sauté the mushrooms: Reduce heat to medium.
Add butter to the skillet. Once melted, add mushrooms and a pinch of salt. Cook, stirring occasionally, until browned and most of the moisture has evaporated, about 5–7 minutes.
Add onions and garlic: Stir in the onion and cook 3–4 minutes until soft.
Add the garlic and cook 30 seconds until fragrant.
Deglaze: Pour in the white wine (or a splash of broth). Scrape up the browned bits. Simmer 1–2 minutes to reduce slightly.
Build the sauce: Stir in Dijon, thyme, and chicken broth.
Simmer 3–4 minutes to concentrate flavor.
Add cream: Lower the heat and pour in the cream. Stir gently and bring to a gentle simmer. Taste and adjust salt and pepper.
Thicken if needed: If you prefer a thicker sauce, stir in the cornstarch slurry and simmer 30–60 seconds until it reaches your desired consistency.
Finish the pork: Return the chops and any juices to the skillet.
Nestle them into the sauce. Cover and simmer on low for 5–8 minutes, or until the pork reaches 145°F in the thickest part.
Rest and serve: Remove from heat and let rest 3 minutes. Spoon sauce over the chops, garnish with parsley, and serve warm.