Sprinkle beef pieces with salt and pepper. 2 lbs beef stew meat, 1/2 tsp black pepper , 1/2 tsp salt
Add olive oil to a large skillet, over medium high heat. Add in the beef pieces and brown them in batches, to give them a nice sear. Transfer to a large slow cooker. 2 TBS olive oil
Add the onion to the skillet, and cook for another 3-4 minutes. Add in the minced garlic and cook it for about 30 seconds. Transfer them to the slow cooker. ½ yellow onion, 1 TBS minced garlic
Add the remaining ingredients to the slow cooker (except the bay leaves, and cornstarch). Stir to combine. 4 cups beef broth , 4 potatoes, 1 cup celery, 1 cup carrots, 6 oz tomato paste, 3 cubes beef bouillon, 1 TBS Worcestershire sauce, 1 tsp dried rosemary, 1 tsp dried thyme, 1 tsp salt, 1 tsp pepper
Add the bay leaves carefully into the stew. 3 bay leaves
Cook stew in the crock pot for 7-8 hours on low, or until the beef is tender.
Add 2 TBS cold water to a small bowl with 2 TBS cornstarch, and whisk them together. 2 TBS cornstarch
Slowly pour the mixture into the stew, cook on high for another 10 minutes or so, until thickened.
Remove the bay leaves, and enjoy hot!