London Broil is a method of cooking and a type of cut that typically refers to a lean cut of beef, such as flank steak or top round, which is marinated and then broiled or grilled. When making it in a slow cooker, the method changes to a long, slow braise which helps tenderize the meat and infuses it with flavor.

Here’s a simple recipe for making London Broil in a slow cooker:

Slow Cooker London Broil

Ingredients:

• 2-3 pounds of London Broil (flank steak or top round)
• 1 large onion, sliced
• 3-4 garlic cloves, minced
• 1 cup beef broth
• 1/2 cup soy sauce
• 1/4 cup Worcestershire sauce
• 1/4 cup balsamic vinegar
• 2 tablespoons Dijon mustard
• 2 tablespoons brown sugar
• 1 teaspoon dried thyme
• 1 teaspoon dried rosemary
• 1 teaspoon black pepper
• 1/2 teaspoon salt
• 2 tablespoons olive oil

Instructions:

1. Marinate the Beef:
   • In a large bowl or zip-lock bag, combine the beef broth, soy sauce, Worcestershire sauce, balsamic vinegar, Dijon mustard, brown sugar, thyme, rosemary, black pepper, and salt.
   • Add the London Broil to the marinade, ensuring it’s fully coated. Marinate in the refrigerator for at least 4 hours or overnight for best results.
2. Prepare the Slow Cooker:
   • Heat olive oil in a large skillet over medium-high heat. Remove the beef from the marinade (reserve the marinade) and sear it in the skillet for about 2-3 minutes on each side, until browned.
3. Cook the Beef:
   • Place the sliced onions and minced garlic in the bottom of the slow cooker.
   • Lay the seared London Broil on top of the onions and garlic.
   • Pour the reserved marinade over the beef.
4. Slow Cook:
   • Cover and cook on low for 7-8 hours or on high for 4-5 hours, until the beef is tender and easily shredded with a fork.
5. Serve:
   • Remove the beef from the slow cooker and let it rest for a few minutes before slicing or shredding.
   • Serve with the cooked onions and some of the cooking liquid as a sauce.

Enjoy your tender and flavorful Slow Cooker London Broil!