Crockpot Broccoli Beef

1 1/2 pounds flank steak, thinly sliced and chopped into 2 inch pieces
1 cup beef broth
2/3 cup low sodium soy sauce
1/3 cup brown sugar
1 tablespoon sesame oil
1 tablespoon minced garlic
1/4 teaspoon red chili flakes
4 cups broccoli florets
2 tablespoons cornstarch
4 tablespoons cold water

Grease the inside of a slow cooker. Add steak, beef broth, soy sauce, brown sugar, sesame oil, garlic, and chili flakes. Cover and cook on high for 2-3 hours or low 4-5 hours.

Minutes before serving, uncover the slow cooker. In a small bowl whisk corn starch and water until dissolved. Add to slow cooker and stir. Cover and allow to cook another 20-25 minutes.

Just before serving, cook the broccoli and add to the crockpot.