Place the stock, soy sauce,brown sugar, chopped garlic and sesame oil into the slow cooker pot and mix well

Add the beef into the pot and mix well to coat

Cook on LOW for 4 hours

After 4 hours, mix the corn starch and water together and add to the pot, stirring well to thicken

Add the chopped broccoli and stir

Cook for a further 30 minutes on HIGH, or until broccoli is soft

Sprinkle with sesame seeds and serve with rice or noodles, or a side of your choice.