Cut onion into rings, pour with cold water, leave it for 30 minutes. Then drain the water, mince onion. Mash banana, cut tomatoes, chop nuts. Mix prepared ingredients with sour cream, sugar, Tkemali sauce, salt and blend.
Peel apples and pears, cut into dices, slice pitted fresh prunes.
Mix fruits, cover with prepared sauce and cool.
When serving, season the salad with the remaining nuts.