Pat the beef dry and season with salt, pepper, garlic powder, onion powder, and paprika.
Heat olive oil in a skillet over medium-high heat.
Sear the beef chunks on all sides for 2–3 minutes until browned (optional but adds deep flavor).
Transfer the beef to the slow cooker.
Add diced onion and minced garlic over the beef.
Pour in the beef broth, Worcestershire sauce, soy sauce (if using), thyme, and parsley.
Stir gently to combine.
Cook on LOW for 6–7 hours or HIGH for 3–4 hours, until beef is tender and easily pulls apart.
In a small bowl, mix the cornstarch and water to create a slurry.
Pour it into the slow cooker and stir well.
Cover and cook for an additional 20–30 minutes until the gravy thickens.
Serve the beef tips and gravy over mashed potatoes, egg noodles, or rice. Spoon extra gravy on top.
