Put the rice in plenty of boiling salted water and let it swell for about 20 minutes at low heat. In the meantime, clean and wash the celery. Put some leaf green aside for garnishing.
Cut the celery into small pieces and blanch for about 2 minutes in a little water. Then rinse with cold water and drain. Wash apples, quarter them and cut out the core. Cut apple quarters into thin slices and sprinkle with lemon juice.
Wash and halve the peaches, remove the core and cut into slices. Roast pine nuts in a dry pan until golden brown. Drain the rice on a sieve. Carefully mix the prepared ingredients and arrange on a plate.
Garnish with retained celery green. Mix buttermilk and orange juice for the sauce. Season to taste with salt and pepper. Serve with salad.