Step 1: Prepare the Beef: Pat beef cubes dry with paper towels. Season with salt, pepper, and dredge lightly in flour. (Optional but recommended) Heat olive oil in a skillet and brown beef cubes in batches for 2–3 minutes per side. This step locks in flavor.
Step 2: Assemble the Crockpot: Place browned beef, onions, carrots, potatoes, and celery in the crockpot. Add tomato paste, Worcestershire sauce, garlic, thyme, rosemary, and bay leaves. Pour in beef broth to cover everything. Stir gently to combine.
Step 3: Slow Cook: Cover with lid and cook on low for 8 hours or high for 4–5 hours, until beef is tender and vegetables are cooked through.
Step 4: Adjust Thickness: If you prefer a thicker stew, mix cornstarch with cold water and stir into the stew about 30 minutes before serving. Remove bay leaves before serving.
Step 5: Garnish u0026 Serve: Stir in fresh parsley and ladle hot stew into bowls.