Creating this delicious Slow Cooker Beef and Broccoli involves straightforward steps. Follow these instructions for the best results:

1. Prepare the Beef: Thinly slice the flank steak or sirloin against the grain to ensure tenderness.
2. Make the Sauce: In a medium bowl, combine the soy sauce, brown sugar, cornstarch, minced garlic, grated ginger, sesame oil, beef broth, and black pepper. Whisk until smooth.
3. Add Ingredients to Slow Cooker: Place the sliced beef in the slow cooker. Pour the sauce mixture over the beef, ensuring all pieces are coated.
4. Cook on Low or High: Cover and cook on low for 4-6 hours or on high for 2-3 hours. The beef should be tender and infused with flavor.
5. Add the Broccoli: In the last 30 minutes of cooking, add the broccoli florets to the slow cooker. Stir well to coat them in the sauce.
6. Thicken the Sauce (Optional): If you prefer a thicker sauce, remove a small amount of sauce from the slow cooker and mix it with an additional tablespoon of cornstarch. Return it to the slow cooker and stir well.
7. Serve and Garnish: Once the beef and broccoli are tender, serve the dish over cooked rice or noodles. Garnish with sliced green onions and sesame seeds if desired.

By following these steps, you’ll create a delightful meal that’s both hearty and flavorful.