Ingredients
Method
- Pat the beef cubes dry with paper towels. Toss them with the flour, salt, pepper, and garlic powder until evenly coated, shaking off any excess.
- Heat the oil in a large skillet over medium-high heat until shimmering. Sear the beef in batches, about 2 minutes per side, until deeply browned. Do not crowd the pan. Transfer to the slow cooker.
- In the same skillet, saute the sliced onion for 3 to 4 minutes, scraping up the browned bits. Add to the slow cooker.
- Whisk together the beef broth, Worcestershire sauce, tomato paste, and thyme. Pour over the beef and onions.
- Cover and cook on LOW for 6 to 7 hours, until the beef is fork-tender. (HIGH for 3 to 4 hours works, but LOW gives the most tender result.)
- Transfer the beef to a serving dish and cover to keep warm. Whisk the cornstarch slurry into the hot cooking liquid, cover, and cook on HIGH for 10 to 15 minutes, until glossy and thickened.
- Taste the gravy and adjust salt and pepper. Return the beef to the gravy, spoon over mashed potatoes or egg noodles, and sprinkle with parsley.
Notes
Tips: Do not skip the sear if you have 15 minutes; it builds the deep flavor this dish is known for. Always taste and re-season the gravy at the end, since slow cookers mute seasoning over long cooks.
Storage: Refrigerate up to 4 days. Freeze up to 3 months; thaw overnight in the fridge and reheat gently with a splash of broth.
Estimated nutrition: about 480 calories per serving (estimated).
