500g beef rump steak or fillet (trimmed)  | 
                                                3 tablespoon(s) golden caster sugar  | 
                                                3 tablespoon(s) soy sauce  | 
                                                2 tablespoon(s) mirin (japanese rice wine)  | 
                                                2 whole(s) cloves of garlic (finely chopped)  | 
                                                1 whole(s) red chilli (seeds removed, finely sliced)  | 
                                                1 tablespoon(s) sesame oil  | 
                                                8 whole(s) spring onions cut into 3cm pieces  | 
                                                1 tablespoon(s) sesame seeds (toasted)  | 
                                                a little vegetable oil  |