Cut the chicken into long, finger-thick strips, add a little salt and mix with the cornstarch. Peel the pineapple, clean and core the spring onions and peppers and cut everything into pieces. Heat the oil in a pan and stir-fry the meat until golden brown. Take out and put in the oven at 50 °. Add the peppers and pineapple to the pan and stir-fry for 2-3 minutes. Add spring onions and fry for another 1-2 minutes. Then mix in the meat.
For the sauce: peel and finely chop the ginger. Mix the remaining ingredients in a small saucepan. Add the ginger and bring to the boil over a medium heat, stirring constantly, until the sauce becomes thick and translucent.
Now add the chicken and stir. This goes well with rice or ribbon noodles.