Asian Kitchen - Chinese chicken with pineapple

Ingredients:4 boneless chicken breasts, cut into cubes1/2 colored capsicum (green/red)2 teaspoons of salt1 teaspoon black pepper1 cup starch2 scrambled eggs1/2 teaspoon vinegar1/3 cup frying oilSliced green onions1 cup of chopped pineappleCashew or roasted sesameSauce:1/2 cup of pineapple juice1/3 cup of chicken stock2 tablespoons of hot sauce1/2 cup brown sugar1 crushed garlic clove1/4 cup of soy sauceA small spoonful of mashed tomA tablespoon of grated ginger