Sweet and sour Pineapple chicken

Ingredients

• 400 gm boneless chicken
• 1/2 cup pineapple pieces
• 2 to 3 tbsp Sugar ((you can reduce it if your pineapple is very sweet))
• 3 tbsp Rice wine Vinegar
• 1 tbsp Black pepper powder
• 2 tbsp garlic
• One cup chopped onion
• 1/2 cup chopped capsicum
• 3/4 cup pineapple juice
• 1 tsp soy sauce
• 2 to 3 green chilies chopped fine (( 2 to 3 or more if you want it very spicy))
• 2 tbsp cornflour and refined flour 2 tbsp made to a batter with water
• 1 tsp cornflour for the sauce.
• 1/2 cup chicken stock
• Salt
• 1 cup oil for frying