Sear Beef: Brown beef chunks in olive oil in a large pot. Remove and set aside.

Sauté Veggies: Sauté sliced leeks and crushed garlic in the same pot until soft.

Add Vegetables & Beef: Stir in carrots, celery, and return beef to the pot.

Add Broth & Barley: Pour in beef broth and barley (if using), then add thyme, bay leaves, salt, and pepper.

Simmer: Bring to a boil, then reduce to a simmer. Cover and cook for 1-2 hours.

Serve: Taste and adjust seasoning. Remove herbs and serve hot.