Step 6:

Now return the beef to the pan, stir in the fish sauce, the stock and the sugar(thats what that brown dollop is) give it a good stir and simmer for 10-15 minutes, stirring occasionally. Keep an eye on the level of the stock, you want to reduce it but not too much.
 

Step 7:

When the beef is tender its time to serve, I had these snazzy wee hot platey things lying around so I decided to use them, I just love the sound of the food sizzling as it hits the hot iron.