Creating the perfect Crock Pot Beef Stew is simple when you follow these steps:

1. Prepare Ingredients: Chop the vegetables and cut the beef stew meat into chunks.
2. Sear the Meat: In a skillet over medium-high heat, sear the beef until browned on all sides. This step is optional but adds depth to the flavor.
3. Add Ingredients to Crock Pot: Place the browned beef in the crock pot. Add the carrots, potatoes, onion, celery, and garlic.
4. Mix in Liquids: Pour the beef broth over the meat and vegetables. Add Worcestershire sauce, thyme, rosemary, salt, pepper, bay leaf, and tomato paste. Stir to combine.
5. Cook: Cover the crock pot. Set on low for 6-8 hours or high for 3-4 hours.
6. Thicken the Stew (if desired): About 30 minutes before serving, mix cornstarch with cold water to form a slurry. Stir it into the stew to thicken the broth.
7. Taste and Adjust Seasoning: Before serving, taste your stew. Adjust salt, pepper, and herbs as needed.
8. Garnish: Remove and discard the bay leaf. Sprinkle fresh parsley on top of the stew before serving.

Following these steps will lead you to a delicious and irresistible stew that everyone will love.