1/2 kg beef (or fish or chicken or mushrooms or whatever)

Coat meat (fish, etc.) with corn starch (maissitärkkelysjauhe for you
Finns) and fry.

Sauce:
2 tbsp (rkl) corn starch
3 tbsp sugar
1 tbsp cayenne or chili pepper
2 tbsp garlic powder
1 tsp salt
4 tbsp orange juice concentrate
3 tbsp soy sauce

Mix well, pour over the meat on the frying pan, fry some more.