Cut meat into long and thin strip
Heat oil on wok
Coat meat with with corn flour and fry
Heat little oil ina frying pan fry red chillies and garlic till golden
Add capsicums, carrot and cabbage; fry on high flame and add meat.
Add tomato ketchup, salt and stock; add dissolved corn flour little at a time, stirring continuously, until gravy thickens. Serve hot