Savoury Lemon Sauce

I really quite like lemon chicken from the Chinese, well I did before, in my previous, in-allergic life. 

I've managed to come up with a sauce which is similar, it's still not quite right and I would appreciate tips if you have any. 

Here's my recipe: 

Juice a lemon. 

Mix the juice with a heaped teaspoon of cornflour. 

To form a paste. 

Add hot water. I made half a litre. 

Pour over your cooked chicken pieces and cook until hot. 

Like I say. It's not the same, but I'm getting there. 

Lupin Girl x