Cook the rice in about 1.5 litres of boiling salted water for about 20 minutes. Put it on a sieve and let it drain. Clean, wash and cut the leek into fine rings. Blanch the leek in boiling salted water for about 2 minutes, rinse in cold water, drain. Drain pineapple and mandarins on a sieve, collect the juice.
Cut the pineapple into pieces. Mix crème fraîche, buttermilk and 100 ml of the fruit juice. Season the sauce with salt, curry and chilli. Mix rice, leek, mandarin oranges and pineapple with the sauce and let it stand for 30 minutes. Put into small bowls and garnish with chives
With 10 people: