Chicken in BBQ Sauce

Ingredients:
Chicken 1 kg
Mushrooms 250 gm
For the Sauce:
Onions 2
Garlic 30 cloves
Black pepper powder 2 tsp
Red chilli powder 1 tsp
Tomato puree 2 tbsp
Vinegar 2 tbsp
Dark corn syrup 1/2 cup
Orange juice 1/4 cup
Corn flour 2 tbsp
Red chilli sauce 2 tbsp
Soya sauce 2 tbsp
Worcestershire sauce 1 tsp
Brown sugar 2 tbsp
Method:
Heat oil and sauté the chicken and mushrooms. For the sauce, heat oil and fry the onion, till light brown. Stir together the brown sugar, corn syrup, corn flour and chilli powder, and then add to the onions. Add 1/2 cup of water and blend well. Add the rest of the ingredients, except for the orange juice. Simmer on a low flame for 30 minutes. Stir occasionally. Stir in the orange juice now and boil. Once the sauce reaches the desired consistency, pour it over the chicken and mushrooms, mix it well.