Peel and quarter the onions. Clean and wash the leek. Cut both into strips
Cook onions and leek in boiling salted water for about 3 minutes. Drain and let cool off
Drain the pineapple, collect the juice. Chop the pineapple. Mix yoghurt, mayonnaise and 3-4 tbsp. pineapple juice. Season with curry, sugar, salt and pepper
Mix vegetables, pineapple and sauce and garnish if necessary
Drink: cool cider