Preparing Classic Beef Stew is a straightforward process. Just follow these steps to ensure a delicious outcome:

1. Brown the Beef: In a large pot, heat the vegetable oil over medium-high heat. Add the beef cubes in batches, searing them until browned on all sides. Remove and set aside.
2. Sauté Onions and Garlic: In the same pot, add chopped onions and sauté until they’re translucent, about 5 minutes. Add minced garlic and cook for another minute.
3. Deglaze the Pot: Pour in approximately one cup of beef broth to deglaze the pot, scraping up any browned bits from the bottom for extra flavor.
4. Add Remaining Ingredients: Return the beef to the pot, then add the carrots, potatoes, celery, dried thyme, dried rosemary, bay leaves, Worcestershire sauce, and the remaining beef broth.
5. Season: Season with salt and pepper to taste. Bring the mixture to a boil.
6. Simmer: Reduce the heat to low, cover, and let it simmer for about 2 to 2.5 hours. Stir occasionally, ensuring the stew does not stick to the bottom.
7. Thicken the Stew (optional): If you desire a thicker consistency, mix the cornstarch with a little cold water to make a slurry and stir it into the stew during the last 15 minutes of cooking.
8. Adjust Seasoning: Before serving, taste and adjust seasoning if necessary. Remove the bay leaves.
9. Garnish: Serve hot, garnished with fresh chopped parsley if desired.

These steps will guide you to creating a rich, hearty Classic Beef Stew that your family will love.