24ouncessteak- preferably chuck or round - 4 pieces - 6 ounces each
salt and pepper to taste
2tablespoonsolive oil
2onionsthinly sliced - large
4clovesgarlicminced
2cupsbeef broth
2tablespoonsWorcestershire sauce
2tablespoonsbalsamic vinegar
2tablespoonstomato paste
1teaspoonthyme - dried
1teaspoonrosemary - dried
1tablespooncornstarchoptional, for thickening
Instructions
Season the steak generously with salt and pepper on both sides.
Heat the olive oil over medium-high heat in a large skillet.
Brown the steaks on both sides, about 3-4 minutes per side.
Transfer the steaks to the slow cooker.
Add sliced onions and minced garlic to the same skillet. Cook until onions are caramelized, about 8-10 minutes.
Transfer the onions and garlic to the slow cooker, arranging over the steaks.
Whisk the beef broth, Worcestershire sauce, balsamic vinegar, tomato paste, dried thyme, and rosemary in a mixing bowl. Pour the mixture over the steaks and onions in the slow cooker.
Cover and cook on low for 6-8 hours, or until the steak is tender and easily shreds with a fork.
If desired, you can thicken the sauce before serving.
To do this, remove about 1/4 cup of the cooking liquid from the slow cooker and whisk it with cornstarch until smooth. Stir the mixture back into the slow cooker and let it cook for an additional 10-15 minutes until thickened.
Serve the braised steak and onions hot, garnished with fresh herbs if desired.