Pour beef strips into resealable bag with the cornflour & shake to coat evenly & set aside for 10 minutes.
Put oil in a pan and brown the beef for 2-3 mins.
Put spring onions, beef and onion in the slow cooker.
In a bowl mix the soy sauce, hoisin, brown sugar, garlic, water, sesame oil and ginger then pour over the beef.
Cook on low for 4 hours.
Serve with rice/noodles and stir fry veg.
