01 - Pat the beef cubes dry with paper towels and season generously with salt and freshly ground black pepper on all sides.
02 - Heat the 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 are softened and the onions become translucent. Add the minced garlic and cook for an additional minute until fragrant.
04 - Stir in the tomato paste and cook for 2 minutes, allowing it to darken slightly. Pour in the dry red wine, scraping the bottom of the pot to deglaze and lift any browned bits. Let the wine reduce by half, about 2–3 minutes.
05 - Return the browned beef and any accumulated juices to the pot. Add the diced tomatoes, beef broth, bay leaves, thyme sprigs, and rosemary. Stir everything together thoroughly 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 the 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 any herb stems. Ladle the stew into bowls and serve hot, accompanied by crusty bread, creamy polenta, or mashed potatoes.