Easy London Broil Crock Pot Recipe is hands down the best way to cook London broil. It’s tender London broil marinated and slow cooked with onions until it’s practically falling apart.
Marinate meat 1 hour before (or 24 hours refrigerated, if you have time).
Place sliced onions on bottom of slow cooker, and put London broil on top of onions.
Cover and cook on HIGH 4 hours, or LOW 8 hours.
If you don't have time to marinate the meat, just pour some marinade over the meat once you place it in the slow cooker. It'll still taste great!