Pat the beef chuck roast dry with paper towels and season evenly with sea salt and black pepper.
Melt the ghee in a large heavy-bottomed pot over medium-high heat and sear the beef until a deep brown crust forms on all sides.
Remove the beef from the pot and add the pearl onions and sliced carrots, sautéing until the onions are lightly translucent.
Add the halved cremini mushrooms and minced garlic to the pot, cooking for 3 minutes until the mushrooms begin to soften.
Stir in the tomato paste and cook for 1 minute, then pour in the dry red wine to deglaze the bottom of the pot.
Return the beef to the pot along with the beef bone broth, fresh thyme sprig, and bay leaf.
Cover and simmer on low heat for approximately 90 minutes or until the beef is tender enough to pull apart with a fork.
Remove the thyme sprig and bay leaf before serving, and garnish with freshly chopped parsley.