Mix together the baking soda and yoghurt and leave them aside for 15 min., while you sift the flour in the meantime.
Next, make a well in the flour and pour the baking soda mixture in it, the beaten eggs and about 1 cup (250 ml) water. Season with salt and sugar. Stir well and leave the mixture to rest for 5 min.
Scoop a ladleful of it and spread it out onto a buttered saj or large pan. Cook the pancakes on both sides and serve with some extra butter or jam.