Put flank steak in a slow cooker with these 3 ingredients. It will change your life

1 tablespoon cornstarch
Generously season the flank steak on both sides with salt and place in the bottom of a 6-quart slow cooker. Add chipotle peppers with adobo sauce and beef broth.
Mix the cornstarch with 1 tablespoon water and whisk into the slow cooker.
Cover and cook on low for 7 hours, or on high for 4 hours.
Remove the flank steak from the cooker. Return the lid to keep the sauce warm.
Using two forks, shred the flank steak and return pieces to the slow cooker. Mix to combine meat with the sauce that has formed. Taste and adjust salt if necessary.