01 - Pat the beef cubes dry with paper towels and season generously with salt and freshly ground black pepper on all sides.
02 - Heat olive oil in a large heavy-bottomed pot or Dutch oven over medium-high heat. Working in batches to avoid crowding, sear the beef cubes until deeply browned on all sides, approximately 3-4 minutes per batch. Transfer the browned beef to a plate and set aside.
03 - In the same pot, add the chopped onion, sliced carrots, and chopped celery with a pinch of salt. Sauté over medium heat for 5-6 minutes until the vegetables have softened. Add the minced garlic and cook for an additional minute until fragrant.
04 - Stir in the tomato paste and cook for 2 minutes, stirring constantly, until it darkens slightly. Pour in the dry red wine, scraping the bottom of the pot to release any browned bits. Allow the wine to reduce by half, approximately 2-3 minutes.
05 - Return the seared beef and any accumulated juices to the pot. Add the diced tomatoes, beef broth, bay leaves, thyme sprigs, and rosemary sprig. Stir well to combine and bring the mixture to a gentle simmer.
06 - Cover the pot with a tight-fitting lid and reduce the heat to low. Cook for 1 hour and 30 minutes, stirring occasionally to prevent sticking, until the beef is becoming tender.
07 - Add the cubed potatoes to the pot, adjust seasoning with salt and pepper to taste, and continue cooking uncovered for an additional 30 minutes, or until both the potatoes and beef are fork-tender and the sauce has thickened to a rich consistency.
08 - Remove and discard the bay leaves and herb stems. Ladle the hot stew into bowls and serve alongside crusty bread, creamy polenta, or mashed potatoes.