In a large bowl, sift together, flour, baking powder and salt.
Rub in the margarine until the pieces are no larger than peas
Mix in water, 1 tablespoon at a time just until the mixture is wet enough to form into a ball. The mixture should be of a firm consistency. Do not over-knead
Heat the oil in a frying pan over medium heat until hot.
Divide dough into pieces and shape into balls. Place just enough in the frying pan so they are not overcrowded.
Fry on each side for about 3 minutes.
Remove from pan and drain on absorbent paper and serve hot.